Chemistry Practice Tests 1

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Chemistry Practice Test 1

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1 / 100

Category: Chemistry Ch 1 Class 12

Triads were introduced by

Newland

Dobreiner

Mendeleev

Al-Razi

2 / 100

Category: Chemistry Ch 9 Class 12

Acetylene upon heating at 300 C gives:

Benzene

Alkene

Alkane

Alcohol

3 / 100

Category: Chemistry Ch 3 Class 12

Which one of the following ions exhibits d-d transition and paramagnetism as well?

NTS 2014
Chemistry
d and f Block Elements
Elimination Tool:

A) MnO4-

B) CrO42-

C) MnO42-

D) Cr2O72-

4 / 100

Category: Chemistry

Which of the following has the highest electrical conductivity?

NUMS Mock 2
Chemistry
Solution and Colloids

A) Aqueous sugar solution

B) Solid graphite

C) Solid sodium chloride

D) Gaseous carbon dioxide

5 / 100

Category: Chemistry Ch 5 Class 11

The maximum number of electrons in an atom with n=3 and l=2 is:

NUMS 2015
Chemistry
Atomic Structure
Elimination Tool:

A) 10

B) 6

C) 18

D) 0

6 / 100

Category: Chemistry Ch 3 Class 11

When does a gas deviate the most from its ideal behavior ?

NTS 2010
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) At low pressure and high temperature

B) At high pressure and high temperature

C) At low pressure and low temperature

D) At high pressure and low temperature

7 / 100

Category: Chemistry

Q.96 Heat supplied at constant pressure equals to

A. Activation Energy

B. Internal energy change

C. Entropy

D. EnthalpyM

8 / 100

Category: Chemistry Ch 11 Class 12

Which of the following is TRUE regarding Methyl Alcohol?

NTS 2011
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

9 / 100

Category: Chemistry Ch 8 Class 11

1 mole of N2O4 (g) was placed in an empty 1 dm^3 container and allowed to reach equilibrium according to the following equation:

N2O4(g) 2NO2(g)

At equilibrium, x mole Of N2O4 (g) had dissociated. What is the value of the equilibrium constant, Kc, at the temperature of the Experiment?

NTS 2016 SMBBMC
Chemistry
Chemical Equilibrium
Elimination Tool:

A) 2x / ( 1 – x)

B) 4×2 / (1 – x)2

C) 2x / (1 – x )2

D) 4×2 / (1 – x)

10 / 100

Category: Chemistry Ch 14 Class 12

Fe’ 2 + is a cofactor of:

Chrome oxidase

Glucose 6-phosphatase

Carbonic anhydrase

Both a and b

11 / 100

Category: Chemistry Ch 7 Class 12

Carbonyl group is present in

Glycol

Glycerol

Dihydrid alcohol

None of these

12 / 100

Category: Chemistry Ch 8 Class 11

For the following exothermic reaction, a decrease in temperature will shift the equilibrium towards: 2NO (g) + O2(g) -> 2NO2 (g)

NTS 2018
Chemistry
Chemical Equilibrium
Elimination Tool:

A) Left

B) The point of equilibrium

C) Both directions

D) Right

13 / 100

Category: Chemistry Ch 15 Class 12

Which of the pair of gases is not a greenhouse gas?

NUMS 2019 Cancelled
Chemistry
Environmental Chemistry
Elimination Tool:

A) Carbon dioxide and methane

B) Carbon dioxide and nitric oxide

C) Nitrogen and oxygen

D) Water vapour and ozone

14 / 100

Category: Chemistry Ch 4 Class 12

Which one of the following Is a vulcanizing agent?

Sodium

Iron

Sulphur

Potassium

15 / 100

Category: Chemistry

Q.109 What is the mass of one mole aspartame having formula C14H18N:O5?

A. 4g

B.40g

C.50g

D.1g

16 / 100

Category: Chemistry

Q.105 Free radical substitution reactions are preferably followed by

A. Alkene

B. Alkyne

C. Alkane

D. Benzene

17 / 100

Category: Chemistry Ch 11 Class 12

Which of the following is more soluble in water?

PMC Sample 1
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

A) Ethanol

B) Phenol

C) Hexanol

D) Dimethyl ether

18 / 100

Category: Chemistry Ch 14 Class 12

Adipic acid and Hexamethylene dlamine combine to form?

Nylon-6,6

Epoxy Resin

Polystyrene

Polyvinyl chloride

19 / 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

20 / 100

Category: Chemistry Ch 6 Class 11

Every sp3 orbital is oriented in space In such a way that angle between them is:

109.5

104.5

120

180

21 / 100

Category: Chemistry Ch 6 Class 11

Structure of ammonia is:

Linear

AB4 (bent or angular)

AB3 (Trigonal)

AB4 (Trigonal pyramidal)

22 / 100

Category: Chemistry Ch 8 Class 11

A reaction with a tendency of occurring in forward and backward direction simultaneously is termed as

PMC Sample 1
Chemistry
Chemical Equilibrium
Elimination Tool:

A) Irreversible

B) Unidirectional

C) Multidirectional

D) Reversible

23 / 100

Category: Chemistry Ch 3 Class 11

Which of the following is constant during an isothermal process?

Volume

Pressure

Temperature

Both b and c

24 / 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

25 / 100

Category: Chemistry Ch 3 Class 12

Orthoboric acid can NOT be obtained by which of the following?

Metaboricacid

Tetraboric acid

) Pyroboric acid

Boric anhydride

26 / 100

Category: Chemistry Ch 10 Class 12

SN2 can be best carried out with:

NUMS 2015
Chemistry
Alkyl Halides and Amines
Elimination Tool:

A) Primary alkyl halide

B) Secondary alkyl halide

C) Tertiary alkyl halide

D) All of the above

27 / 100

Category: Chemistry

Nitric oxide has how many valence electrons?

NUMS Mock 1
Chemistry
Atomic Structure

A) 10

B) 13

C) 11

D) 12

28 / 100

Category: Chemistry Ch 3 Class 12

) Which one of the following is metalloid?

C

Si

S

0

29 / 100

Category: Chemistry Ch 10 Class 11

Oxidation number of Cr in K2Cr2O2 & K2Cr2O4 is:

+6, +3

+5, +2

7 +3

6 +4

30 / 100

Category: Chemistry Ch 9 Class 11

The solubility product for BaSO4 , at 18-25°C is:

NTS 2015 DUHS and JSMU
Chemistry
Solution and Colloids
Elimination Tool:

A) 1.0 x 10-10mol2dm-6

B) 8.7 x 10-36mol2dm-6

C) 1.8 x 10-21mol2dm-6

D) 8.4 x 10-28mol2dm-6

31 / 100

Category: Chemistry Ch 7 Class 11

The heat of a reaction can be calculated by using:

NTS 2010
Chemistry
Thermochemistry
Elimination Tool:

A) Joule's Law

B) Ohm's Law

C) Hess's Law

D) Faraday's Law

32 / 100

Category: Chemistry Ch 1 Class 11

What is the percentage by mass of Nitrogen in NH4(NO3)?

40%

50%

35%

30%

33 / 100

Category: Chemistry Ch 13 Class 12

Which type of carboxylic acid is produced from the hydrolysis of nitriles?

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

A) Beta-hydroxy carboxylic acids

B) Acids having one carbon more than the starting material

C) Acids having one carbon less than the starting material

D) Alpha-hydroxy acids

34 / 100

Category: Chemistry Ch 13 Class 12

The carbonic acid which Is named after butter is:

Capric acid

Enanthic acid

Butyric Acid

Formic acid

35 / 100

Category: Chemistry Ch 1 Class 11

Mass spectrometer is used to determine which of the following quantity?

) Atomic mases

Atomic number

Both a and b

None of these

36 / 100

Category: Chemistry Ch 15 Class 12

The substance for the separation of isotopes is firstly converted into the

UHS 2016
Chemistry
Environmental Chemistry
Elimination Tool:

A) Neutral state

B) Free state

C) Vapour state

D) Charged state

37 / 100

Category: Chemistry Ch 1 Class 12

The ionization energy increases from left to right in a period due to increase in?

PMC Practice 1
Chemistry
Periodicity in Elements
Elimination Tool:

A) Nuclear charge

B) Number of electrons

C) Atomic number

D) All of these

38 / 100

Category: Chemistry Ch 10 Class 11

The electrolyte used in fuel cell is:

NUMS 2019 Reconduct
Chemistry
Electrochemistry
Elimination Tool:

A) KOH

B) NaCl (aq)

C) NaNO3

D) Molten NaCl

39 / 100

Category: Chemistry Ch 6 Class 11

Which one of these is paramagnetic?

N

Be

He

None of these

40 / 100

Category: Chemistry Ch 2 Class 12

Which of the following is the correct order of electronegativity (from highest to lowest)?

NTS 2015 SMBBMC
Biology
s and p Block Elements
Chemical Bonding
Elimination Tool:

A) F , O, N , C

B) N, F , O, C

C) C, F, N, O

D) C, F, O, N

41 / 100

Category: Chemistry Ch 2 Class 12

Commercial hydrogen is obtained from:

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

A) coal gas

B) oil gas

C) marsh gas

D) producer gas

42 / 100

Category: Chemistry Ch 2 Class 12

When Gypsum is heated to about 100° C, it losses some water of crystallization and becomes:

NTS 2011
Chemistry
States of Matter – Gases, Liquids and Solids
s and p Block Elements
Elimination Tool:

A) Epsom salt

B) Kieserite

C) Plaster of Paris

D) Bleaching Powder

43 / 100

Category: Chemistry Ch 2 Class 12

The chemical name of the baking powder is:

NTS 2011
Chemistry
s and p Block Elements
Elimination Tool:

A) Sodium carbonate

B) Sodium bicarbonate

C) Sodium hydrogen carbonate

D) Sodium hydroxide

44 / 100

Category: Chemistry

Q.22 The unhybridized p orbitals of benzene are present in the form of ?

A. Between the C-C bonds of benzene

B. Above and below the carbon bonds

C. In the form of cloud above and below the benzene ring

D. None of these

45 / 100

Category: Chemistry Ch 7 Class 11

Which one of the following equations correctly defines the enthalpy changes of formation of carbon monoxide:

NUMS 2018
Chemistry
Thermochemistry
Elimination Tool:

A) C(s) + 1/2 O2 -> CO(g)

B) C(g) + 1/2 O2-> CO(g)

C) C(s) + O(g)-> CO(g)

D) C(g) + CO2(g) -> 2CO(g)

46 / 100

Category: Chemistry Ch 9 Class 12

The C-H bond distance is the longest in:

NUMS 2015
Chemistry
Hydrocarbons
Elimination Tool:

A) C2H4

B) C2H2

C) C2H6

D) C2H2Br

47 / 100

Category: Chemistry Ch 15 Class 12

Which of the following is a Marco-nutrient

Boron

Copper

Iron

Nitrogen

48 / 100

Category: Chemistry Ch 7 Class 12

Which of the following has the lowest vapour pressure at 20 degrees Centigrade?

PMC 2020
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

A) Diethyl ether

B) Chloroform

C) Carbon tetrachloride

D) Water

49 / 100

Category: Chemistry Ch 14 Class 12

Which of the following is not a part of the human diet?

Glucose

Sucrose

Fructose

Cellulose

50 / 100

Category: Chemistry Ch 3 Class 12

Which one of the following is an acid?

H3BO3

Al(0H)3

Ca(0H)2

NaOH

51 / 100

Category: Chemistry Ch 8 Class 12

Unsaturated Compound containing double bond is:

Alkane

Alkene

Alkyne

Alkylene

52 / 100

Category: Chemistry Ch 3 Class 11

Real gases behave ideally at:

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

A) Low temperature and low pressure

B) Moderate temperature and low pressure

C) High temperature and low pressure

D) High temperature and high pressure

53 / 100

Category: Chemistry Ch 7 Class 11

Starting point of Kelvin scale is:

NUMS 2020
Chemistry
Thermochemistry
Elimination Tool:

A) 0 K

B) -400 K

C) -210 K

D) -273.15 K

54 / 100

Category: Chemistry Ch 13 Class 12

Which of the following is an example of aromatic carboxylic acid?

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

A) Ethanoic acid

B) Butanoic acid

C) Adipic acid

D) Phthalic acid

55 / 100

Category: Chemistry Ch 10 Class 11

When electricity is passed through water in the presence of an acid, oxygen and ______ is produced.

NTS 2018
Chemistry
Electrochemistry
Elimination Tool:

A) Carbon

B) CO

C) CO2

D) Hydrogen

56 / 100

Category: Chemistry

Q.101 The maximum charge to mass ratio for those canal rays when ______ gas is used in discharge tube

A. He

B. H2

C. O2

D. N2

57 / 100

Category: Chemistry Ch 7 Class 12

Which of the following is the reducing agent:

NUMS 2015
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

A) C3H8

B) C2H5COOH

C) C3H7OH

D) (CH3)2CO

58 / 100

Category: Chemistry Ch 15 Class 12

The gas which is mainly produced in landfills from the waste is:

UHS 2016
Chemistry
Environmental Chemistry
Elimination Tool:

A) CH4

B) CO2

C) SO2

D) Cl2

59 / 100

Category: Chemistry Ch 5 Class 12

The order of decreasing power as an oxidizing agent is

F2> Br2> Cl2>I2

F2 > O2> Br2 > I2

F2 < O2 < Br2 < I2

F2 < Br2< C12 <I2

60 / 100

Category: Chemistry Ch 3 Class 11

A solid melts sharply just above 100 degree centigrade. it does not conduct electricity even when molten. It has weak Vander waal’s forces. What is the structure of the solid most likely to be?

NTS 2015 SMBBMC
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) An atomic crystal

B) ionic crystal

C) a molecular crystal

D) metallic

61 / 100

Category: Chemistry Ch 13 Class 12

Which one will act as a strong acid?

UHS 2018
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

A) Chloroethanoic acid

B) Ethanoic acid

C) Trichloroethanoic acid

D) Dichloroethanoic acid

62 / 100

Category: Chemistry Ch 8 Class 12

Which one of the following molecules has the shortest distance of carbon atoms?

NTS 2013
Chemistry
Hydrocarbons
Elimination Tool:

A) CH3- CH3

B) CH2= CH2

C) CH≡ CH

D) CH3- CH2- CH3

63 / 100

Category: Chemistry Ch 3 Class 12

Chemical formula of powder used in carom board is?

NaHCO3

H3B03

Na2CO3

K2CO3

64 / 100

Category: Chemistry

Solid NaCl is a bad conductor of electricity because:

NUMS Mock 2
Chemistry
States of Matter – Gases, Liquids and Solids

A) Solid NaCl is covalent

B) In the solid state, there are no ions

C) In solid NaCl. there is no migration of ions

D) In solid NaCl, there are not electron

65 / 100

Category: Chemistry Ch 3 Class 12

A six-coordinate complex of formula CrCl3.6H2O has green color. A 0.1 M solution of the complex, when treated with an excess of AgCl, gave 28.7 g of a white precipitate. The formula of the complex would be___________.

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

A) [Cr(H2O)6]Cl3

B) [Cr(H2O)5Cl]Cl2.2H2O

C) [Cr(H2O)4Cl2]Cl.2H2O

D) [Cr(H2O)3Cl3].3H2O

66 / 100

Category: Chemistry Ch 15 Class 12

“Zymase”- a group of 14 enzymes, used in the fermentation of starch, is present in:

NTS 2010
Chemistry
Chemistry of Life
Elimination Tool:

A) Bacteria

B) Yeast

C) Fungi

D) Algae

67 / 100

Category: Chemistry Ch 14 Class 12

Which of the following can he used as a source of energy

Lipids

Carbohydrates

Both a and b

None of these

68 / 100

Category: Chemistry Ch 4 Class 11

All the collisions between the particles of gases are elastic in nature. What is meant by “Elastic Collisions”?

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

A) No change in the total kinetic energy

B) The velocity of the molecules changes

C) No change in potential energy during the collisions

D) No change in mass during the collisions

69 / 100

Category: Chemistry Ch 1 Class 11

The smallest number of molecules are present in?

Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

A) 3.6g of H2

B) 4.8g of C2H5OH

C) 2.8 g of CO

D) 5.4 g of N2O5

70 / 100

Category: Chemistry Ch 13 Class 12

Strongest acid among the following is:

NUMS 2014
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

A) HCOOH

B) CH3COOH

C) (CH3)2CHCOOH

D) (CH3)3CCOOH

71 / 100

Category: Chemistry Ch 7 Class 12

The rate of E1 reaction depends upon:

NTS 2019
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

A) The concentration of the substrate

B) The concentration of the nucleophile

C) The concenıration of the nucleophile and the substrate

D) The amount of the solvent used

72 / 100

Category: Chemistry

Q.142 In the production of wrought iron Mg Si and P are removed in the form of

A. Oxides

B. Silicates

C. Slag

D. Carbonates

73 / 100

Category: Chemistry Ch 3 Class 11

Half atmospheric pressure is:

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

A) 400 torr

B) 50622 Pa

C) 101.3 Pa

D) 8.5 pounds

74 / 100

Category: Chemistry Ch 11 Class 11

For the reaction, A(g) -> products:

When the concentration of A(g) doubles, the rate of reaction increases four folds, which means it is:

PMC 2020
Chemistry
Reaction Kinetics
Elimination Tool:

A) Negative order reaction

B) First order reaction

C) Zero order reaction

D) Second order reaction

75 / 100

Category: Chemistry

Q.82 In balancing it is very important to identify the substance whose

A. Physical state is changed

B. Oxidation number is changed

C. Enthalpy is changed

D. All of these

76 / 100

Category: Chemistry Ch 11 Class 12

The classification of monohydric alcohols is due to

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

A) hydrogen atom

B) carbon atom

C) hydroxyl group

D) carbonyle group

77 / 100

Category: Chemistry Ch 7 Class 11

What is the measure of activation energy in an endothermic reaction?

UHS 2019
Chemistry
Thermochemistry
Elimination Tool:

A) The energy of activation of backward reaction is less than that of forward reaction

B) The energy of activation of backward reaction is more that that of forward reaction.

C) The energy of activation of forward reaction is less than that of backward reaction.

D) The energy of activation of forward – backward reaction is same.

78 / 100

Category: Chemistry Ch 1 Class 12

Outer transition elements belong to

NTS 2013
Chemistry
Periodicity in Elements
Elimination Tool:

A) s-block

B) p-block

C) d-block

D) f-block

79 / 100

Category: Chemistry Ch 8 Class 12

Acetylene with Cl2 gives:

1, 2-dicholropropane

1, 1, 2, 2-tetrachloroethane

Ethane dichloride

1, 1, 2, 2-tetrachloromethene

80 / 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

81 / 100

Category: Chemistry

Which enzyme is used when sugar In molasses is converted to glucose and fructose?

Amylase

Protease

Sucrase

None of these

82 / 100

Category: Chemistry Ch 4 Class 11

At 1489 mm of Hg, water will boil at:

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

A) 120 C

B) 110 C

C) 100 C

D) 90 C

83 / 100

Category: Chemistry Ch 14 Class 12

Polymers are made up of:

PMC 2021 Tested
Chemistry
Macromolecules
Elimination Tool:

A) Monomers

B) Epimers

C) Enantiomers

D) Isomers

84 / 100

Category: Chemistry Ch 12 Class 12

A diabetic person’s exhaled breath contains propanone. A student tries to test the diabetes by asking the person to bubble the reagent with his exhaled breath. Which of the following reagents would give a positive result?

PreMedPK MDCAT Mock 5
Chemistry
Aldehydes and Ketones
Elimination Tool:

A) Aqueous Bromine

B) Fehling’s reagent

C) Tollen’s reagent

D) Alkaline aqueous iodine

85 / 100

Category: Chemistry

Q.73 Unit for rate constant is s–1 for a reaction. Its order is

0

1

2

3

86 / 100

Category: Chemistry Ch 13 Class 12

Which of the following is used as coagulation for latex in rubber industry

Acetic acid

Amino acid

Ethyl alcohol

Rayon

87 / 100

Category: Chemistry Ch 14 Class 12

Monomers of Nylon 6,6 Is/are:

Caprolactam

Adipoyl chloride

Hexamethylene diarnine

Both b and c

88 / 100

Category: Chemistry

Q.82 The oxidation number of ‘P’ in HPO3 is

A. +3

B. +5

C. +1

D. –3

89 / 100

Category: Chemistry

NaNO3 on heating gives:

NUMS Mock 3
Chemistry
Periodicity in Elements

A) O2

B) NO2

C) O2 + NO2

D) NaNO2 + O2

90 / 100

Category: Chemistry Ch 2 Class 11

The molecular formula expresses?

NTS 2015 SMBBMC
Chemistry
Stoichiometry
Elimination Tool:

A) Relative number of atoms and electrons

B) actual number of atoms

C) both relative and actual number of atoms

D) none of the above

91 / 100

Category: Chemistry Ch 5 Class 12

Oxides of xenon are formed from:

XeF6

XeF4

XeF2

All of these

92 / 100

Category: Chemistry Ch 1 Class 12

Hydrogen resembles with alkali metals in all respects except

NTS 2016 SMBBMC
Chemistry
Periodicity in Elements
Elimination Tool:

A) Half – filled valence shell

B) Formation of unipositive ion

C) Reducing nature

D) Valence shell electronic configuration

93 / 100

Category: Chemistry Ch 8 Class 11

Which of the following factor(s) affect a reversible chemical reaction in accordance with the Le – Chatelier Principle?

NUMS 2019 Reconduct
Chemistry
Chemical Equilibrium
Elimination Tool:

A) Pressure

B) Temperature

C) Concentration

D) Pressure, concentration and temperature

94 / 100

Category: Chemistry Ch 13 Class 12

There is double bond in oleic acid between carbon numbers:

7-8

8-9

10-11

9-10

95 / 100

Category: Chemistry Ch 13 Class 12

Acetic acid derived from the word ‘Acetum’ which means_______?

PMC Sample 1
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

A) Acetic acid

B) Bitter

C) Citric

D) Vinegar

96 / 100

Category: Chemistry Ch 9 Class 11

In depression of freezing point, freezing constant Is divided by

Molarity

Molality

Molar fraction

All of these

97 / 100

Category: Chemistry Ch 5 Class 11

Which of the following quantum numbers are for p-subshell?

a

b

c

d

98 / 100

Category: Chemistry Ch 7 Class 12

Which of the following is not an isomer of other three:

2,2-Dimethyl pentane

2-Methylhexane

2,3- Dimethyl pentane

2,2- Dimethyl butane

99 / 100

Category: Chemistry Ch 1 Class 12

The false statement about lithium is:

NTS 2013
Chemistry
Periodicity in Elements
Elimination Tool:

A) It is softer than other alkali metals

B) It is least reactive

C) It possesses higher melting and boiling points

D) It forms chloride which is soluble in alcohol

100 / 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

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