Chemistry Practice Tests 2

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Chemistry Practice Test 2

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1 / 100

Category: Chemistry Ch 12 Class 12

Oxidation of alcohol converts it into?

Aldehyde

Tertiary Alcohol

Alkane

Carboxylic Acid

2 / 100

Category: Chemistry Ch 4 Class 11

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?

UHS 2018
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

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

3 / 100

Category: Chemistry

Q.163 Which will need maximum energy to remove its one electron?

A. Na————– Na- +e

B. Ca——————-Ca– +e

C.K————K++ +e

D. C2+————– C3+ +e

4 / 100

Category: Chemistry Ch 2 Class 11

What volume in dm3 of KCl is obtained in the following equation if the volume of KCIO3 at the beginning of the reaction is 20 dm3?

2KClO3 -> 2KCl + 3O2

NTS 2016 DUHS & JSMU
Chemistry
Stoichiometry
Elimination Tool:

B) 74.5 dm3

C) 50 dm3

D) 40 dm3

E) 20 dm3

5 / 100

Category: Chemistry Ch 9 Class 12

Boiling point of benzene is:

70.3

80.1

133

79.41

6 / 100

Category: Chemistry Ch 12 Class 12

During oxidation of unsymmetrical ketones which atom is oxidized?

PreMedPK MDCAT Mock 5
Aldehydes and Ketones
PMC Practice 28
Elimination Tool:

A) Carbonyl carbon

B) Carbon attached to smaller number of hydrogen atom

C) Carbon attach to larger number of hydrogen atoms

D) Hydrogen

7 / 100

Category: Chemistry Ch 3 Class 12

Impurities of lead in silver are removed by:

NUMS 2016
Chemistry
d and f Block Elements
Elimination Tool:

A) Parke’s process

B) Solvay process

C) Cyanide process

D) Amalgamation process

8 / 100

Category: Chemistry Ch 15 Class 12

How many grams of micronutrients are needed by 1 acre of land?

100-1000

200-500

6 to 200

20 to 300

9 / 100

Category: Chemistry Ch 9 Class 11

Molarity is defined as the number of moles of any substance dissolved:

UHS 2011
Chemistry
Solution and Colloids
Elimination Tool:

A) Per dm3 of water

B) In one gram of water

C) Per m3 of water

D) In 100 ml of water

10 / 100

Category: Chemistry Ch 2 Class 12

Magnesium oxide is used in:

NTS 2015 DUHS and JSMU
Chemistry
s and p Block Elements
Elimination Tool:

A) as antacid

B) as reractory material

C) vulcanisation of rubber

D) all of the above

11 / 100

Category: Chemistry Ch 8 Class 11

a

b

c

d

12 / 100

Category: Chemistry Ch 16 Class 12

Treatment of water which is very effective in killing of pathogens is:

Aeration

Coagulation

Landfill

Chlorine usage

13 / 100

Category: Chemistry

Q.92 The correct statement about 2px and 2pz is

A. Both are shells of same atom

B. Both are degenerate orbitals

C. Both subshell have same energy

D. Both orbitals are parallel to each other

14 / 100

Category: Chemistry Ch 1 Class 11

What will be the mass in grams of 12 gram atom of carbon atoms?

12.66 x 10^-24

1.66 x 10^-24

1.992 x 10^-23

2.660 x 10^-23

15 / 100

Category: Chemistry Ch 5 Class 11

The number of electrons present in n=2 , l = 1 and m = 1, 0, -1 are:

NTS 2016 DUHS & JSMU
Chemistry
Atomic Structure
Elimination Tool:

A) 2

B) 6

C) 8

D) 10

16 / 100

Category: Chemistry

Q.116 Phenol does not evolve CO2 from NaHCO3 like carboxylic acids because phenol is

A. Stronger acid than carboxylic acid

B. Strong acid than carbonic acid

C. Weaker acid than carboxylic acid

D. Aromatic in nature

17 / 100

Category: Chemistry Ch 2 Class 11

Slow cooling yields crystals of length?

Medium size

Small

Bigger

None of these

18 / 100

Category: Chemistry Ch 14 Class 12

The sugar unit in DNA molecule is:

NUMS 2019 Reconduct
Chemistry
Macromolecules
Elimination Tool:

A) Ribose

B) 2 – deoxyribose

C) 3 – deoxyribose

D) 2 – deoxypentose

19 / 100

Category: Chemistry Ch 13 Class 12

Which of the following is not an aromatic compound)

Picric

Phthalic acid

Tartaric acid

Salicylic acid

20 / 100

Category: Chemistry Ch 4 Class 12

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

SO2

SCl2

H2SO4

H2S03

21 / 100

Category: Chemistry

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

A. Cardiac

B. Epithelial

C. Connective

D. Epidermis

22 / 100

Category: Chemistry Ch 10 Class 12

Which one the following can act as nucleophile?

Diethyl ether

Anilinium ion

Acylium ion

Dichloro methylene carbine

23 / 100

Category: Chemistry Ch 15 Class 12

Unpolluted rain water has a pH of:

UHS 2013
Chemistry
Environmental Chemistry
Elimination Tool:

A) 4.9

B) 5.6

C) 5.3

D) 7.0

24 / 100

Category: Chemistry Ch 9 Class 12

Name the main product formed as a result of the following reaction

H3C – (CH2)5 – CH3 ————> Product

n-heptane

Conditions: 480 – 550 C, 150 – 399 psi V2O5

NTS 2019
Chemistry
Hydrocarbons
Elimination Tool:

A) Benzene

B) Toluene

C) Xylene

D) Cyclohexane

25 / 100

Category: Chemistry Ch 5 Class 12

Which halogen is used as a refrigerant?

F

CI

Br

I

26 / 100

Category: Chemistry Ch 9 Class 11

Elevation of the boiling point is a ____ property.

PMC 2021 Tested
Chemistry
Solution and Colloids
Elimination Tool:

A) Colligative

B) None of these

C) Constitutive

D) Additive

27 / 100

Category: Chemistry Ch 2 Class 11

106 gram of Na2CO3 per dm3 of the solution of Na2CO3 in water, the concentration of the solution will be:

NTS 2018
Chemistry
Stoichiometry
Elimination Tool:

A) 1N

B) 0.1 M

C) 1M

D) 0.02M

28 / 100

Category: Chemistry Ch 2 Class 11

The efficiency of chemical reaction can be expressed as:

PMC 2020
Chemistry
Stoichiometry
Elimination Tool:

A) Theoretical yield

B) Actual yield

C) % yield

D) Maximum yield

29 / 100

Category: Chemistry

Strongest acid among the following is:

NUMS Mock 3
Chemistry
Carboxylic Acids and its Derivatives

A) HCOOH

B) CH3COOH

C) (CH3)2 CHCOOH

D) (CH3)3CCOOH

30 / 100

Category: Chemistry

Q.33 Rate constant is denoted by?

A. k

B. kr

C. kv

D.ks

31 / 100

Category: Chemistry Ch 11 Class 12

Ethers are very good:

Solvent

Oxidizing agen

Reducing agent

Dehydrating agent

32 / 100

Category: Chemistry Ch 11 Class 12

Which of the following is an insecticide?

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

A) DDT

B) Teflon

C) Iodoform

D) Dynamite

33 / 100

Category: Chemistry

The correct order of decreasing solubility of AgCI In A) Water B) 0.1 M NaCi C) 0.1 BaCl2 D) 0.1M NI-43
is?

a)D>A>B>C

b)D>C>B>A

c)B>A>D>C

d)A>D>B>C

34 / 100

Category: Chemistry Ch 11 Class 12

IUPAC name of wood spirit is

Ethanol

Methanol

Propanol

None of these

35 / 100

Category: Chemistry Ch 10 Class 11

Zn can be deposited on iron by?

Galvanizing

Cathode Coating

Neutral suspension

All of these

36 / 100

Category: Chemistry

Which one of the following enthalpy changes is always exothermic?

NUMS Mock 4
Chemistry
Thermochemistry

A) Enthalpy of combustion

B) Enthalpy of formation

C) Enthalpy of atomization

D) Enthalpy of solution

37 / 100

Category: Chemistry

In this reaction NH4* + H2O -> H3O*, the conjugate base of H3O+ ion is:

NUMS Mock 3
Chemistry
Chemical Equilibrium

A) NH4+

B) H2O

C) H*

D) NH3

38 / 100

Category: Chemistry Ch 8 Class 12

Which of the following compounds react slower than benzene in electrophilic substitution reaction?

PreMedPK MDCAT Mock 5
Chemistry
Hydrocarbons
Elimination Tool:

A) Nitrobenzene

B) Phenol

C) Aniline

D) Toluene

39 / 100

Category: Chemistry Ch 3 Class 11

1 liter of a gas weighs 2 g at 300 K and 1 atm pressure. If the pressure is made 0.75 atm, at which of the following temperatures will 1 L of the same gas weigh 1 g?

NTS 2017
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) 450 K

B) 800 K

C) 600 K

D) 900 K

40 / 100

Category: Chemistry Ch 11 Class 12

Which of the following compounds are added to ethanol to make it unfit for drinking?

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

A) Pyridine

B) Methanol

C) Acetone

D) All of these options are correct

41 / 100

Category: Chemistry Ch 11 Class 12

Which of the following is TRUE regarding Methyl Alcohol?

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

A) It is a colorless, volatile, thin liquid with specific gravity 0.796 at 15°C

B) It is used for low-temperature thermometers and as a fuel substitute

C) It is extensively used in the formation of different beverages

D) It is used as a base for perfumes

42 / 100

Category: Chemistry Ch 11 Class 11

The rate of reaction:

PMC Sample 2
Chemistry
Reaction Kinetics
Elimination Tool:

A) Increases as the reaction proceeds

B) Decreases as the reaction proceeds

C) Remains unchanged

D) None of these options is correct

43 / 100

Category: Chemistry Ch 8 Class 11

How will the equilibrium of the following reaction be affected if additional nitrogen is added?

N2(g) + 3H2(g)⇌ 2NH3(g)

NTS 2015 DUHS and JSMU
Chemistry
Chemical Equilibrium
Elimination Tool:

A) It will be shifted to the right.

B) It will be shifted to the left.

C) it will be unaffected.

D) The effect on the equilibrium cannot be determined without more information.

44 / 100

Category: Chemistry Ch 3 Class 11

Which of the following solids is an example of a substance with a macromolecular structure?

NUMS 2016
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Aluminium chloride

B) Ice

C) Magnesium oxide

D) Silicon (IV) oxide

45 / 100

Category: Chemistry Ch 14 Class 12

PVC is created from which halogen

Fl

Br

CI

I

46 / 100

Category: Chemistry Ch 13 Class 12

What is correct order of acidic strength?

Carboxylic acid > alcohols > phenol > water

Carboxylic acid > phenol > water > alcohol

Water > alcohol > carboxylic acid > phenol

Phenol > alcohol > water > carboxylic acid

47 / 100

Category: Chemistry Ch 10 Class 11

Oxidation state of P in Mg2P3O5 Is

+2

-2

-1

1

48 / 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

49 / 100

Category: Chemistry Ch 5 Class 11

Bracket series of 14-atom is in which of the following regions of electromagnetic spectrum?

Far infrared

Near infrared

Infrared

Visible

50 / 100

Category: Chemistry Ch 12 Class 12

What one is the correct geometry of acetal?

PreMedPK MDCAT Mock 3
Aldehydes and Ketones
Elimination Tool:

A) Trigonal

B) Linear

C) Tetrahedral

D) Square planer

51 / 100

Category: Chemistry Ch 2 Class 11

Atomic number of C is 6 and H is 1. How many electrons are present In 1.6 grams of methane?

NTS 2015 DUHS and JSMU
Chemistry
Stoichiometry
Elimination Tool:

A) 6.02 x 1023

B) 1.204 x 1023

C) 1.806 x 1023

D) 2.408 x 1023

52 / 100

Category: Chemistry Ch 4 Class 12

The colour of transition metal complexes is due to:

NTS 2019
Chemistry
d and f Block Elements
Elimination Tool:

A) d-d transition of electrons.

B) Paramagnetic nature of transition elements

C) Loss of s-electrons

D) Refraction phenomenon

53 / 100

Category: Chemistry Ch 11 Class 11

The rate constant of a first-order reaction is 3 x 10-6 per second.

If the initial concentration is 0.10 M, the initial rate of reaction is:

NUMS 2018
Chemistry
Reaction Kinetics
Elimination Tool:

A) 3 x 10-3 Ms-1

B) 3 x 10-4 Ms-1

C) 3 x 10-6 Ms-1

D) 3 x 10-7 Ms-1

54 / 100

Category: Chemistry Ch 2 Class 11

C12H22O11+ conc. H2SO4—> 12 C + ? + H2SO4

NTS 2016 SMBBMC
Chemistry
Stoichiometry
Elimination Tool:

A) 11 H2O

B) 11 O2

D) 11 H2

C) 11 CO2

55 / 100

Category: Chemistry

Q.165 Carboxylic acids are formed by the hydrolysis of_

A. Ester Nitriles

B. Nitriles, amines

C. Alkenes, Alkynes

D. Esters, Alcohols

56 / 100

Category: Chemistry Ch 7 Class 12

Which one is not an organic compound?

NUMS 2014
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

A) Fats

B) Water

C) Carbohydrates

D) None

57 / 100

Category: Chemistry Ch 13 Class 12

What is common when carboxylic acid is reacted with base or with alcohol?

NUMS 2019 Cancelled
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

A) Catalyst

B) Formation of ester

C) Formation of salt

D) Formation of water

58 / 100

Category: Chemistry

Q.76 Choose the incorrect statement

A. The unit of rate of reaction is mol dm–3s–1

B. The unit of rate constant depends on the order of reaction

C. Rate constant changes as the reaction proceeds

D. Rate of reaction changes with passage of time

59 / 100

Category: Chemistry Ch 4 Class 11

Which of the following shows H-bonding?

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

A) CH₃CH₂OH

B) CH₃-O-CH₃

C) CH₃CH₂Cl

D) All of these

60 / 100

Category: Chemistry

Q.23 What is the color of silver acetylide, AgC=CAg?

A. Red

B. White

C. Brown

D. Pinkish

61 / 100

Category: Chemistry Ch 1 Class 12

Aqua regia can dissolve noble metal due to the formation of

NTS 2016 SMBBMC
Chemistry
Periodicity in Elements
Elimination Tool:

A) Nitrous acid

B) Nitric oxide

C) Nitrosyl chloride

D) Nascent nitrogen

62 / 100

Category: Chemistry Ch 12 Class 12

Formaldehyde is Industrially Prepared from:

Methanol

Ethyl alcohol

Methyl alcohol

Oxidation of ethylene

63 / 100

Category: Chemistry Ch 7 Class 11

Some substances lack definite heats of fusion. These substances are:

NUMS 2020
Chemistry
Thermochemistry
Elimination Tool:

A) Isomorphs

B) Polymorphs

C) Amorphous solids

D) Crystalline solids

64 / 100

Category: Chemistry Ch 4 Class 11

Which type of movement is shown by the atoms of the solid?

PMC Practice 6
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Translational motion

B) Vibrational motion

C) Rotational motion

D) Linear motion

65 / 100

Category: Chemistry Ch 3 Class 11

Real gases deviate significantly from ideal gas behavior at

Low temperature and high pressure

High temperature and low pressure

None of these

Noth a and b

66 / 100

Category: Chemistry Ch 4 Class 11

To conduct electricity through Ionic Solids, the ions should be:

PMC Practice 5
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Excited

B) Energized

C) Free

D) In random motion

67 / 100

Category: Chemistry Ch 1 Class 11

If the number of molecules of different gases are the same at S.T.P., the occupied volume will be _____.

PMC Practice 24
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

A) Greater

B) Same

C) Smaller

D) Twice

68 / 100

Category: Chemistry Ch 15 Class 12

Free Nitrogen and Oxygen are present in atmosphere but they do not react with each other under normal conditions because:

UHS 2019
Chemistry
Environmental Chemistry
Elimination Tool:

A) Nitrogen requires a catalyst

B) Oxygen is very inactive

C) Oxygen is found in less concentration

D) Nitrogen is highly inactive gas

69 / 100

Category: Chemistry Ch 4 Class 12

Unpaired electron trend of transition elements:

PMC 2021 Tested
Chemistry
d and f Block Elements
Elimination Tool:

A) Increases till Mn and decreases till Zn

B) Remains unchanged

C) Decreases

D) Increase

70 / 100

Category: Chemistry Ch 10 Class 11

The oxidation state of “S’ in the (S2O3)-2 is:

PMC 2020
Chemistry
Electrochemistry
Elimination Tool:

A) +4

B) +6

C) -2

D) +2

71 / 100

Category: Chemistry Ch 3 Class 11

If the matter in a given system at a given condition is divided into two equal parts, then the value of the extensive properties will become:

NTS 2011
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Double of the original value

B) Half of the original value

C) Remain the same as the original value

D) One-fourth of the original value

72 / 100

Category: Chemistry Ch 5 Class 11

) The velocity of electron in outermost shell Is?

Minimum

Maximum

Intermediate

None of these

73 / 100

Category: Chemistry Ch 1 Class 11

The relative abundance of isotopes of elements are measured by?

PMC Practice 11
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

A) Atomic spectroscopy

B) Ionic spectroscopy

C) Mass spectroscopy

D) Mass spectrometry

74 / 100

Category: Chemistry Ch 4 Class 11

The nature of Binding Force in Ionic Crystals is

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

A) Magnetic

B) Repulsive

C) Electrostatic

D) Weak

75 / 100

Category: Chemistry Ch 5 Class 12

) Which halogen is present in Teflon?

Chlorine

Bromine

Fluorine

Iodine

76 / 100

Category: Chemistry Ch 1 Class 11

27 g of Al will react with how much mass of O2 to produce Al2O3?

PMC Practice 22
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

A) 8g of oxygen

B) 16g of oxygen

C) 32g of oxygen

D) 24g of oxygen

77 / 100

Category: Chemistry Ch 11 Class 11

For a reaction 2A + 3B -> C
The rate law expression is given by rate = K [A]1[B]2. The order of the reaction with respect to A, B and overall order of reaction are:

NUMS 2015
Chemistry
Reaction Kinetics
Elimination Tool:

A) 2, 1, 3

B) 1, 2, 3

C) 0, 1, 2

D) 2, 1, 0

78 / 100

Category: Chemistry Ch 1 Class 11

In which of the following will water evaporate earlier?

PMC Practice 1
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

A) Cup

B) Saucepan

C) Glass

D) Small bowl

79 / 100

Category: Chemistry Ch 12 Class 12

In the addition of sodium bisulfite to carbonyl system, which of the following is a nucleophile?

PreMedPK MDCAT Mock 3
Chemistry
Aldehydes and Ketones
Elimination Tool:

A) Sulphide ion

B) Sulfite ion

C) Hydride ion

D) Sodium ion

80 / 100

Category: Chemistry Ch 9 Class 12

The bond angles in benzene ring are:

PMC Sample 1
Chemistry
Hydrocarbons
Elimination Tool:

A) 90˚

B) 60˚

C) 120˚

D) 180˚

81 / 100

Category: Chemistry Ch 2 Class 12

The most dense element is:

NTS 2013
Chemistry
s and p Block Elements
Elimination Tool:

A) Li

B) K

C) Ca

D) Ba

82 / 100

Category: Chemistry Ch 2 Class 12

Which alkaline earth metal make peroxide?

NUMS 2019 Reconduct
Chemistry
s and p Block Elements
Elimination Tool:

A) Ba

B) Be

C) Mg

D) Ca

83 / 100

Category: Chemistry Ch 12 Class 12

Paraldehyde is formed by:

Formaldehyde

Acetaldehyde

Acetone

None of these

84 / 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

85 / 100

Category: Chemistry

Q.77 H banding is not present in which of the following_____________?

A.DNA

B. proteins

C. Carbohydrates

D. Lipids

86 / 100

Category: Chemistry Ch 9 Class 12

How many Dewar Structure of Benzene are present?

2

3

4

Infinite

87 / 100

Category: Chemistry Ch 1 Class 11

Avogadro’s constant is the number of:

PMC 2021 Tested
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

A) Electrons present in 2g of H

B) Atoms in 24g of Mg

C) Atoms in 1g of He

D) Molecules in 35.5g of Chlorine

88 / 100

Category: Chemistry Ch 8 Class 12

Catenation is a process in which carbon shows the properties of:

NTS 2010
Chemistry
Hydrocarbons
Elimination Tool:

A) Making single bond

B) Hybridization

C) Making chains or rings of carbon atoms

D) Isomerism

89 / 100

Category: Chemistry Ch 8 Class 11

A system at equilibrium can be disturbed by:

NTS 2013
Chemistry
Chemical Equilibrium
Elimination Tool:

A) Concentration change

B) Pressure change

C) Temperature

D) All of the above

90 / 100

Category: Chemistry Ch 1 Class 11

Which of the following molecule is expressed in empirical formula:

C6H12O6

C6H6

Na2S4O6

C2 H5

91 / 100

Category: Chemistry Ch 12 Class 12

Tincture of Iodine is:

NUMS 2015
Chemistry
Aldehydes and Ketones
Elimination Tool:

A) In alcohol with CHI3

B) In alcohol with I2

C) In ethanol and water mixture with KI and I2

D) In KI and CH3I

92 / 100

Category: Chemistry Ch 4 Class 11

In the gaseous state, the distance between the molecules is ___ times _____ than their diameters.

PMC Sample 3
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) 2, lesser

B) 3, lesser

C) 3, greater

D) 2, greater

93 / 100

Category: Chemistry

Q.117 The rate of esterification of alcohols is more for

A. (CH3)3 COH

B. CH3 OH

C. C2 H5 OH

D. (CH3)2 CHOH

94 / 100

Category: Chemistry Ch 11 Class 11

Half-life of iron is? (A=59)

44.5 days

1.3 million years

3.8 days

2.5 billion years

95 / 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

96 / 100

Category: Chemistry Ch 1 Class 12

In which of the following chromium has different oxidation state?

NTS 2016 SMBBMC
Chemistry
Periodicity in Elements
Elimination Tool:

A) K2Cr2O7

B) CrCl3

C) CrO3

D) K2CrO4

97 / 100

Category: Chemistry Ch 3 Class 11

Rate of effusion of a gas depends upon:

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

A) size of pin hole

B) pressure

C) temperature

D) molecular mass

E) all of above

98 / 100

Category: Chemistry Ch 9 Class 12

n-Heptane can be converted into benzene by catalysts:

Al203, Si02, Fe203

Si02, K20, Cr203

Al203,Si02, Cr203

None of these

99 / 100

Category: Chemistry Ch 9 Class 12

What is the color of silver acetylide, AgC=CAg?

PMC Practice 2
Chemistry
Hydrocarbons
Elimination Tool:

A) Red

B) White

C) Brown

D) Pinkish

100 / 100

Category: Chemistry Ch 11 Class 11

H2SO4 has great affinity for water because:

NTS 2014
Chemistry
Acids, Bases and Salts
Elimination Tool:

A) It decomposes the acid

B) It hydrolyses the acid

C) Acid decomposes the water

D) Acid forms hydrates with water

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