Chemistry Practice Tests 2 - PLS Academy

Chemistry Practice Test 2

Chemistry Practice Test 2 is designed to help students strengthen their understanding of key chemistry concepts, formulas, and reactions for competitive entry tests like MDCAT, NUMS, AKU, UET, ECAT, NTS, as well as FSC Board Exams. This test covers topics from chemical kinetics, equilibrium, acids and bases, and thermochemistry, helping students improve accuracy and problem-solving skills.

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Chemistry Practice Test 2

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1 / 100

Category: Chemistry Ch 7 Class 11

Molar heat of vaporization is the amount of heat required to convert one mole of:

NUMS 2020
Chemistry
Thermochemistry
Elimination Tool:

A) A liquid into its vapours at its boiling point

B) Liquids into its vapours

C) Solids into vapours

D) Solid into liquid at its melting point

2 / 100

Category: Chemistry Ch 11 Class 12

In which of the following reaction does the C-O bond of alcohol not break?

PreMedPK MDCAT Mock 1
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

A) Reaction with SOCl2

B) Dehydration

C) Esterification

D) All of these options are correct

3 / 100

Category: Chemistry

Thermochemistry is very important to learn about _______.

NUMS Mock 3
Chemistry
Thermochemistry

A) Chemical Equilibrium

B) Chemical Bonding

C) Heat contents of a compound

D) AlI of these options are correct

4 / 100

Category: Chemistry

Q.98 The pair of liquids having the H-bonding as dominate force of attraction in the mixture but not individually

A. Water and ethanol

B. Ethanol and hydrogen fluoride

C. Chloroform and acetone

D. Water and hydrogen fluoride

5 / 100

Category: Chemistry Ch 14 Class 12

Teflon is name of:

Polytetraflurorthylene

Polyhexafluoroethylene

Polytetrachloroethylene

Polyhydrafluoroethylene

6 / 100

Category: Chemistry Ch 1 Class 12

The formula of washing soda is:

NUMS 2015
Chemistry
Periodicity in Elements
Elimination Tool:

A) N2CO3

B) Na2CO3 . H2O

C) Na2CO3 . 7H2O

D) Na2CO3 . 10 H2O

7 / 100

Category: Chemistry Ch 5 Class 11

Which quantum number decides energy of orbitals?

Magnetic quantum number

Principal quantum number

Azimuthal quantum number

All of these

8 / 100

Category: Chemistry Ch 11 Class 12

Higher order alcohols

Have more than 1 carbon

have more than 3 carbons

Have more than 2 carbons

Have more than 4 carbons

9 / 100

Category: Chemistry

Q.146 a liquid crystalline state exist between two temperatures I-e melting temperature and temperature

A. Boiling

B. Freezing

C. Clearing

D. All of these

10 / 100

Category: Chemistry Ch 5 Class 12

The reduction of which of the following produces Hydrofluoric acid?

a) XeF2

XeF4

Xe F6

All of the above

11 / 100

Category: Chemistry Ch 2 Class 12

Li is an element of group?

II-A

Ill-A

I-A

IV-B

12 / 100

Category: Chemistry Ch 7 Class 11

For a chemical reaction A -> B, the threshold energy of the reaction is 37 kJ/mole. The average internal energy of A is 12 kJ/Mole. What will be the activation energy of A?

NTS 2016 SMBBMC
Chemistry
Thermochemistry
Elimination Tool:

A) 43 K.J/Mole

B) 37 K.J/Mole

C) 25 KJ/Mole

D) 19 K.J/Mole

13 / 100

Category: Chemistry Ch 4 Class 11

Ice floats on the surface of water due to:

NUMS 2020
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Larger bond length

B) Cubic structure of ice

C) Weak intermolecular forces

D) Empty spaces in the structure of ice

14 / 100

Category: Chemistry Ch 9 Class 12

Which type of hybridization takes place in benzene?

Sp3

Sp2

Sp2 and Sp3

15 / 100

Category: Chemistry Ch 10 Class 11

Oxidation state of sulphur in H2SO4?

-2

16 / 100

Category: Chemistry Ch 15 Class 12

Urea is the most widely used nitrogen fertilizer in Pakistan. Its composition is:

UHS 2015
Chemistry
Environmental Chemistry
Elimination Tool:

A) NH2CO

B) N2H5CO2

C) N2H4CO2

D) N2H4CO

17 / 100

Category: Chemistry Ch 13 Class 12

) Which of the following is not a use of acetic acid?

As a coagulant for latex in rubber industry

manufacture of pickles

Used in silvering of mirrors

None of these

18 / 100

Category: Chemistry Ch 7 Class 12

IUPAC name of C6H5 – CH2 – CH2 – NH2 is:

PMC 2020
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

A) 2-phenyl ethenamine

B) 2-phenyl ethanamine

C) 2-phenyl ethylamine

D) 3-phenyl ethanamine

19 / 100

Category: Chemistry Ch 7 Class 12

The type of isomerism in which the position of functional group changes is called?

Tautomesrism

Cis-Trans Isomerism

Funcricinal Group Isomerism

Metamerism

20 / 100

Category: Chemistry

Q.32 vapor pressure is measured by calculating difference in liquid pressure and

A mercury pressure

B. glass pressure

C. atmospheric pressure

D. container pressure

21 / 100

Category: Chemistry Ch 8 Class 11

The equation N2(g)+ 3H2(g)⇋ 2NH3(g)represents:

PMC 2020
Chemistry
Chemical Equilibrium
Elimination Tool:

A) Contact process

B) Haber’s process

C) Solvay process

D) Avogadro’s Law

22 / 100

Category: Chemistry Ch 9 Class 11

The compound with more than 10% solubility in pure water is:

ETEA 2018
Chemistry
Solution and Colloids
Elimination Tool:

A) M???3

B) A?2(??3)3

C) K2??3

D) ????3

23 / 100

Category: Chemistry Ch 9 Class 11

An azeotropic mixture of two liquids has a boiling point higher than either of them when it:

NUMS 2016
Chemistry
Solution and Colloids
Elimination Tool:

A) Shows positive deviation from Raoult’s law

B) Shows negative deviation from Raoult’s law

C) Shows ideal behaviour

D) Is saturated

24 / 100

Category: Chemistry Ch 10 Class 11

The reaction: Cl2 + H2O→ HCl + HOCl is an example of:

NTS 2014
Chemistry
Electrochemistry
Elimination Tool:

A) Oxidation reaction

B) Reduction reaction

C) Auto-oxidation and reduction reaction

D) Substitution reaction

25 / 100

Category: Chemistry Ch 14 Class 12

________ is used as a preservative for life specimens.

NTS 2012
Chemistry
Macromolecules
Elimination Tool:

B) Ammonia

C) Methanol

D) NaOH

E) Formalin

26 / 100

Category: Chemistry

Q.91 The half-ire of Uranium i

A. 700 Millon years

B.706 Million years

C 89 days

D. 710 million year

27 / 100

Category: Chemistry Ch 8 Class 11

According to the law of mass action, “The rate of chemical reaction” is proportional to the:

NTS 2010
Chemistry
Chemical Equilibrium
Elimination Tool:

A) The amount of product formed

B) Product of the molar concentration of reactants

C) The initial concentration of reactants

D) Catalyst

28 / 100

Category: Chemistry Ch 2 Class 11

The rate of filtration can be considerably increased by using

Fluted filter paper

Suction flask

Stirrer

None of these

29 / 100

Category: Chemistry Ch 6 Class 12

Which of the following Is the reason that Iron is the most abundant element?

Oldest metal

Binding energy

Less stability

Ferromagnetic

30 / 100

Category: Chemistry Ch 12 Class 12

Why is it necessary to distill aldehyde formed from oxidation of primary alcohol through acidified potassium dichromate (VI) solution or acidified sodium dichromate (VI) solution?

PreMedPK MDCAT Mock 5
Chemistry
Alcohols, Phenols and Ethers
Aldehydes and Ketones
Elimination Tool:

A) Aldehyde formed may be oxidized further to carboxylic acid concerned

B) Aldehyde formed is unstable and decompose back to original precursor i.e. primary alcohol

C) Aldehyde may be oxidised further to a ketone

D) Aldehyde formed may react with primary alcohol, the original reactant.

31 / 100

Category: Chemistry Ch 2 Class 11

Which of the following can ba employed instead of filter papers?

Gooch Crucible

Sintered Glass Crucible

Both a and b

None of these

32 / 100

Category: Chemistry Ch 1 Class 12

11) Hydrogen has properties similar to:

Alkali metals

Halogens

Both a and b

None of these

33 / 100

Category: Chemistry Ch 3 Class 11

Acetone and Chloroform are soluble into each other due to:

NUMS 2015
Chemistry
Chemical Bonding
States of Matter
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Hydrogen bonding

B) Dipole – dipole interaction

C) London forces

D) Both (a) and (b)

34 / 100

Category: Chemistry

Q.21 SN reaction is a_______________?

A. Multistep reaction

B. Two step reactions

C. Concerted reaction

D. 3 step reaction

35 / 100

Category: Chemistry

Q.4 Melting and boiling point of transition elements are higher due to

A. Higher binding energies

B Strong metallic bonding

C. Hardness

D. All of these

36 / 100

Category: Chemistry Ch 5 Class 11

Which pair has 1 electron in it’s ‘s’ orbital?

PMC 2020
Chemistry
Atomic Structure
Elimination Tool:

A) Li & Fe

B) Na & Cr

C) K & Mn

D) H & He

37 / 100

Category: Chemistry Ch 5 Class 11

Which of the following does not show variable valency?

NUMS 2015
Chemistry
Atomic Structure
Elimination Tool:

A) Mn

B) Fe

C) Zn

D) Cr

38 / 100

Category: Chemistry Ch 6 Class 11

The bonds present in N2O5 are:

NUMS 2015
Chemistry
Chemical Bonding
Elimination Tool:

A) Only ionic

B) Covalent and coordinate

C) Only covalent

D) Covalent and ionic

39 / 100

Category: Chemistry

Q.143 Which one of the following benzene molecules have?

A. Two double bonds

B. Delocalized pi-electron charge

C. Three double bonds

D. One sigma bond

40 / 100

Category: Chemistry Ch 5 Class 11

Which of the following best describes the emission spectrum of atomic hydrogen?

NTS 2015 DUHS and JSMU
Chemistry
Atomic Structure
Elimination Tool:

A) a discrete series of lines of equal intensity and equally spaced with respect to wavelength equally

B) a series of only four lines

C) a continuous emission of radiation of all frequencies

D) several discrete series of lines with both intensity and spacings between lines decreasing as the wavenumber increases with each series.

41 / 100

Category: Chemistry

The potential difference of an electrochemical cell is measured by:

NUMS Mock 2
Chemistry
Electrochemistry

A) Ammeter

B) Voltmeter

C) Galvanometer

D) Calorimeter

42 / 100

Category: Chemistry Ch 14 Class 12

PVC is created from which halogen

43 / 100

Category: Chemistry

Q.164 Reaction of vinyl acetylene with HCI produces?

A. Polyvinyl polymer

B. Polyvinyl Acetylene

D. Chloroprene

C. Neoprene

44 / 100

Category: Chemistry Ch 9 Class 11

Which one is the correct formula for molar mass of solute In case of boiling point elevation? x

M2= 1000 Kb W2M1/ Tb W1

) M2= 1000 Kb W2/ Tb

M2 = Kb W1 Tb/1000

M2 =1000 Tb W21 Kb

45 / 100

Category: Chemistry Ch 2 Class 11

The empirical formula of Glucose C6H12O6 is:

PMC 2020
Chemistry
Stoichiometry
Elimination Tool:

A) C6H12O6

B) CHO

C) CH2O

D) CH2O2

46 / 100

Category: Chemistry Ch 10 Class 11

Oxidation is defined as:

) loss of electron

Gain of electron

Gain of oxygen

Both a and c

47 / 100

Category: Chemistry Ch 3 Class 12

Which of the following transition metals has the highest variable oxidation state?

NUMS 2019 Cancelled
Chemistry
d and f Block Elements
Elimination Tool:

A) W

B) Pt

C) Hg

D) Mn

48 / 100

Category: Chemistry Ch 4 Class 11

How many atmospheres correspond to 1050 torr?

NTS 2019
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) 1.050

B) 10.38

C) 1.380

D) 2.760

49 / 100

Category: Chemistry Ch 6 Class 11

Which one of these is paramagnetic?

None of these

50 / 100

Category: Chemistry Ch 5 Class 11

The maximum possible number of electrons a shell ‘n’ can accommodate is given by:

NTS 2012
Chemistry
Atomic Structure
Elimination Tool:

A) n

B) n2

C) 2n2

D) n3

51 / 100

Category: Chemistry

Which of the following is the most environmentally friendly source to derive energy?

NUMS Mock 1
Chemistry
Environmental Chemistry

A) Lead-acid accumulator

B) H2- O2fuel cell

C) Silver oxide battery

D) Alkaline battery

52 / 100

Category: Chemistry

Reaction mechanism of alkanes with halogens is known as;

NUMS Mock 3
Chemistry
Alkyl Halides and Amines

A) Propagation

B) Free radical substitution

C) Addition

D) Elimination

53 / 100

Category: Chemistry

Q.103 Left-handed helix in proteins secondary structure is called as

A. Alpha helix

B. Beta helix

C. Spiral

D. Coucentrate

54 / 100

Category: Chemistry Ch 11 Class 11

The process of bringing an element in use after its complete half-life is:

Rejuvenation

Revoking

Recycling

None of these

55 / 100

Category: Chemistry

Gas is enclosed in a container of 20 cm3 with the moving piston. According to kinetic theory of gases, what will be the effect on freely moving molecules of the gas if temperature is increased from 20 C to 100 C?

NUMS Mock 3
Chemistry
States of Matter – Gases, Liquids and Solids

A) Pressure will become one half

B) Volume will be increased

C) Temperature has no effect on freely moving molecules

D) Colliding capability of molecule will become lower

56 / 100

Category: Chemistry Ch 10 Class 11

In electrochemical series, elements are arranged in order of their standard electrode potentials, the correct decreasing reactivity order for metals is:

NTS 2018
Chemistry
Electrochemistry
Elimination Tool:

A) Gold, silver, magnesium, aluminum

B) Mercury, calcium, sodium, magnesium

C) Sodium, aluminum, lead, copper

D) Potassium, silver, magnesium, aluminum

57 / 100

Category: Chemistry Ch 15 Class 12

Photochemical smog is primarily caused by

ETEA 2019
Chemistry
Environmental Chemistry
Elimination Tool:

A) O3

B) NO2

C) SO3

D) CO2

58 / 100

Category: Chemistry

Q.89 Iftwo substituents are present at 1,4 positions then the isomer is called As____________?

A. Ortho

B. Meta

C.Para

D.None of these

59 / 100

Category: Chemistry Ch 11 Class 12

Which of the following compounds will give a secondary alcohol after reaction with NaBH4?

PreMedPK MDCAT Mock 3
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

A) CH3COCH3

B) CH3COOCH3

C) CH3CH2CHO

D) CH3CH2COOH

60 / 100

Category: Chemistry

Q.17 Legumine & collagen protein are present in which type of body tissues:

A. Cardiac

B. Epithelial

C. Connective

D. Epidermis

61 / 100

Category: Chemistry Ch 1 Class 11

Which of the following statement about Avogadro’s hypothesis is correct?

Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

A) Under similar conditions of temperature and pressure, gases react with each other in simple ratio.

B) Under similar conditions of temperature and pressure, equal volumes of all gases contain same number of molecules.

C) At NTP all gases contain same number of molecules.

D) Gases always react with gases only at given temperature and pressure.

62 / 100

Category: Chemistry Ch 11 Class 12

Phenol Acts as

Mild agent

Reducing agent

Oxidizing agent

All of the above

63 / 100

Category: Chemistry Ch 8 Class 11

The Haber Process is used to produce ammonia commercially according to the following equilibrium: N2(g) + 3H2g = 2NH3g + energy Which of the following conditions will produce the highest yield of ammonia?

Increase temperature and increase pressure

Increase temperature and decrease pressure

Decrease temperature and increase pressure

Decrease temperature and Decrease pressure

64 / 100

Category: Chemistry Ch 1 Class 11

One mole of substance at STP has:

PMC 2021 Tested
Chemistry
Introduction to Fundamental Concepts of Chemistry
Stoichiometry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) 2.24 dm³

B) 24.4 dm³

C) 2.44 dm³

D) 22.4 dm³

65 / 100

Category: Chemistry Ch 11 Class 12

The alkenes can be formed by alcohols in the presence of

PMC Sample 3
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

A) acidified KMnO4

B) acidified K2Cr2O7

C) acidified Cucl2

D) pyridine

66 / 100

Category: Chemistry Ch 5 Class 11

The radii of the second orbit of the hydrogen atom calculated from Bohr’s model is:

NTS 2013
Chemistry
Atomic Structure
Elimination Tool:

A) 0.529 Å

B) 4.8 Å

C) 2.41 Å

D) 3.4 Å

67 / 100

Category: Chemistry

Q.124 The organic acid with the highest pKa value is

A. Chloroethanoic acid

B. Dichloroethanoic acid

C. Trichloroethnoic acid

D. Nitroethanoic acid

68 / 100

Category: Chemistry Ch 3 Class 12

The color of transition metal complexes is due to transition of electrons between:

NUMS 2019 Reconduct
Chemistry
d and f Block Elements
Elimination Tool:

A) p to d orbitals

B) d to d orbitals

C) p to p orbitals

D) d to p orbitals

69 / 100

Category: Chemistry Ch 15 Class 12

Percentage of nitrogen in urea is:

70 / 100

Category: Chemistry Ch 14 Class 12

Which of the following is NOT a “raw material” used in the Solvay process?

NTS 2016 SMBBMC
Chemistry
Macromolecules
Elimination Tool:

A) Sodium Chloride

B) Sodium Carbonate

C) Limestone

D) Ammonia gas

71 / 100

Category: Chemistry Ch 9 Class 11

The oxidation state of Cl in HClO4 is:

NTS 2019
Chemistry
Solution and Colloids
Elimination Tool:

A) -1

B) -5

C) +7

D) -7

72 / 100

Category: Chemistry Ch 4 Class 11

Vapor pressure depends on:

Intermolecular forces

Quantity of liquid

Site of the molecules

Surface area

Both a and d

73 / 100

Category: Chemistry Ch 13 Class 12

Which of the following is an example of Monocarboxylic acid?

PMC Sample 2
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

A) Oxalic acid

B) Methanoic acid

C) Glutaric acid

D) Adipic acid

74 / 100

Category: Chemistry Ch 1 Class 11

If 9.8 g of sulfuric acid is dissolved in excess quantity of water, it will yield ____ moles of hydrogen ion (H+) and _____ moles of sulphate ions (SO42-).

PMC Practice 7
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

A) 0.1, 0.2

B) 0.1, 0.3

C) 0.2, 0.4

D) 0.2, 0.1

75 / 100

Category: Chemistry Ch 6 Class 11

In HF the covalent bond is due to:

NTS 2016 SMBBMC
Chemistry
Chemical Bonding
Elimination Tool:

A) S-S overlapping

B) S-Pz overlapping

C) S-Px overlapping

D) Pz – Pz overlapping

76 / 100

Category: Chemistry Ch 5 Class 12

Which halogen is used as a refrigerant?

77 / 100

Category: Chemistry Ch 10 Class 12

Reaction of CH3CH2MgBr with ethylene epoxide gives:

NUMS 2019 Reconduct
Chemistry
Alkyl Halides and Amines
Elimination Tool:

A) Ethanal

B) 1 – butanol

C) 2 – butanol

D) Butane

78 / 100

Category: Chemistry Ch 4 Class 12

Which of the following is typical transition element?

PMC Practice 4
Chemistry
d and f Block Elements
Elimination Tool:

A) Zn

B) Cd

C) Cu

D) Hg

79 / 100

Category: Chemistry Ch 3 Class 12

The oxidation states of Boron are:

+1,+2 and +3

-1, -2 and -3

+1 and -1

+3 and -3

80 / 100

Category: Chemistry Ch 4 Class 11

The densities of liquids are much ________ than gases but ____ to solids.

PMC Sample 1
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) smaller, closer

B) greater, closer

C) smaller, far away

D) greater, far away

81 / 100

Category: Chemistry Ch 11 Class 12

The reactivity of alcohol when 0-H bonds break

Tertiary Alcohol < Secondary Alcohol < Primary Alcohol

Primary Alcohol > Secondary Alcohol > Tertiary Alcohol

Primary Alcohol > Secondary Alcohol < Tertiary Alcohol

Tertiary Alcohol > Primary Alcohol > Secondary Alcohol

82 / 100

Category: Chemistry Ch 4 Class 12

In which of the following the oxidation state of S is the highest

SO2

SCl2

H2SO4

H2S03

83 / 100

Category: Chemistry Ch 3 Class 11

The value of S.T.P for 1 mole of any ideal gas is:

NUMS 2020
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) 273.16 K and 1 atm

B) 0 C & 1 mm Hg

C) 273 16 C & 1 atm

D) 0 K & 1 atm

84 / 100

Category: Chemistry Ch 2 Class 12

Formula of Epsom salt is:

85 / 100

Category: Chemistry Ch 7 Class 11

The net heat change in a chemical reaction is the same whether it is brought about in two or more different ways in one or several steps. This is known as:

NTS 2019
Chemistry
Thermochemistry
Elimination Tool:

A) Henry's law

B) Hess's law.

C) Joule's principle

D) Dalton's law

86 / 100

Category: Chemistry Ch 1 Class 12

Who started the development of the First Periodic Table?

) Antoine Bequerel

Dimitri Mendeleev

Robert Boyle

John Newlands

87 / 100

Category: Chemistry Ch 14 Class 12

Polymerization of ethene produces which of the following polymers?

PMC Practice 3
Chemistry
Macromolecules
Elimination Tool:

A) Polyvinyl

B) Polethyl

C) Polyethylene

D) Polyethoxy

88 / 100

Category: Chemistry Ch 2 Class 11

Filtration process could be very time consuming if it is not aided by a gentle suction which is developed:

If the paper covers the funnel up to its circumference

If the paper has got small sized pores In It.

If the stern of the funnel is large so that it dips into the filtrate

If the paper fits tightly all around the upper circumference of the funnel

89 / 100

Category: Chemistry Ch 6 Class 11

The hybridization of atomic orbitals of N2+, NO3-, and NH4+are, respectively:

NTS 2015 DUHS and JSMU
Chemistry
Chemical Bonding
Elimination Tool:

A) Sp, sp2, sp3

B) Sp, sp3, sp2

C) Sp2, sp, sp3

D) Sp2, sp3, sp

90 / 100

Category: Chemistry Ch 14 Class 12

The alloy Duralumin is composed of ______ of Al.

NTS 2018
Chemistry
Macromolecules
Elimination Tool:

A) 95%

B) 90%

C) 85%

D) 80%

91 / 100

Category: Chemistry Ch 10 Class 11

The hydrogen gas bubbling into one molar solution of HCl has a pressure of

PMC Sample 3
Chemistry
Electrochemistry
Elimination Tool:

A) 2atm

B) 780 mmHg

C) 19 Psi

D) 1 atm

92 / 100

Category: Chemistry Ch 4 Class 11

Which one of the following has the highest lattice energy?

NUMS 2019 Reconduct
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) NaCl

B KCl

C) KBr

D) LiCl

93 / 100

Category: Chemistry Ch 8 Class 11

In the reaction;

H2 + CO2 H2O + CO

The decrease in the concentration of reactants and products cause the equilibrium to shift:

NUMS 2020
Chemistry
Chemical Equilibrium
Elimination Tool:

A) Towards left

B) Towards right

C) Nothing happens to the equilibrium

D) Equilibrium will shift towards both the directions

94 / 100

Category: Chemistry

Q.84 In BeCl2 the covalent bond is formed due to overlap if

A. sp–s

B. sp–p

C. sp2–p

D. sp3–s

95 / 100

Category: Chemistry Ch 10 Class 11

On balancing the following chemical equation: K2CrO4, + HCI –> KCI + 2CrCI3 + Cl2 + H2O The co-efficient with HCI will be?

96 / 100

Category: Chemistry Ch 4 Class 12

D block elements are also called as ____ ?

PMC Practice 1
Chemistry
d and f Block Elements
Elimination Tool:

A) Rare earth elements

B) Outer transition elements

C) Inner transition elements

D) Typical transition elements

97 / 100

Category: Chemistry

Q.14 Kinetic Energy is the sum of

A. Rotational & Vibrational

B. Translation & Rotational

C. Rotational, Vibrational and Translation

D. All of these

98 / 100

Category: Chemistry

Q.95 250cm3 of a hypothetical gas is cooled from 127°C to –73°C by maintaining the pressure constant. The new volume of the gas at low temperature is

A. 0.25dm3

B. 125 cm3

C. 1.25dm3

D. 250cm3

99 / 100

Category: Chemistry Ch 3 Class 11

Glass is a/an:

NTS 2014
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Pure solid

B) Supercooled liquid

C) Mixture of sodium and calcium

D) Crystalline form of Na2CO3

100 / 100

Category: Chemistry Ch 15 Class 12

The pH of acid rain is

UHS 2014
Chemistry
Environmental Chemistry
Elimination Tool:

A) 7

B) Between 5 and 7

C) Below 5

D) Between 7 and 14

Your score is

The average score is 54%

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