Chemistry Practice Tests 2

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Chemistry Practice Test 2

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1 / 100

Category: Chemistry Ch 4 Class 11

What is the % relative humidity at 25 C and 0.01876 atm if the vapor pressure of water is 23.76 mm Hg.

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

A) 40 %

B) 50 %

C) 60 %

D) 70%

2 / 100

Category: Chemistry Ch 7 Class 11

Which ion will have a maximum value of the heat of hydration?

PMC Practice 1
Chemistry
Thermochemistry
Elimination Tool:

A) Al+3

B) Cs+

C) Ba+

D) Mg+2

3 / 100

Category: Chemistry Ch 13 Class 12

What happens if we react a carboxylic acid with an acyl chloride?

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

A) It forms an acid anhydride

B) It forms an acyl halide

C) It does not react due to resonance

D) It does not react due to bad leaving group

4 / 100

Category: Chemistry

Q.134 Why phenol is more acidic than Alcohol?

A. Due to presence oI resonance in phenol

B. Due to absence of resonance of in alcohol

C. Both A and B

D. Because in phenol His attach to O

5 / 100

Category: Chemistry

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

NUMS Mock 3
Chemistry
d and f Block Elements

A) p to d orbitals

B) d to d orbitals

C) p to p orbitals

D) d to p orbitals

6 / 100

Category: Chemistry Ch 15 Class 12

Percentage of nitrogen in urea is:

92

68

46

48

7 / 100

Category: Chemistry Ch 8 Class 11

A very small value of ‘Kc’ for a reaction at equilibrium indicates:

NUMS 2018
Chemistry
Chemical Equilibrium
Elimination Tool:

A) Very small amount of reactants

B) Very small amount of products

C) The rate of backward reaction is greater than that of the forward one

D) The rate of forward reaction is greater than that of the backward one

8 / 100

Category: Chemistry Ch 12 Class 12

Identify the common name of the following compound:

CH₃CH₂COCH₂OH

PreMedPK MDCAT Mock 1
Chemistry
Aldehydes and Ketones
Fundamental Principles of Organic Chemistry
Elimination Tool:

A) Α-hydroxy-ethyl methyl aldehyde

B) Α-hydroxy-ethyl methyl ketone

C) Β-hydroxy-ethyl methyl ketone

D) Β-hydroxy-ethyl methyl ketone

9 / 100

Category: Chemistry Ch 4 Class 12

Copper reacts with hot concentrated H2SO4 in presence of

Air

Water

Ammonia

Strong heat

10 / 100

Category: Chemistry Ch 7 Class 11

Heat of Neutralization is defined as:

Heat of formation of one mole of salt

Both a and b

Heat of formation of one mole of water

None of these

11 / 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

12 / 100

Category: Chemistry Ch 11 Class 12

2-methyl 2-propanol is:

Secondary butyl alcohol

Tertiary butyl alcohol

Primary butyl alcohol

Quaternary butyl alcohol

13 / 100

Category: Chemistry

Q.90 Which of the following propefties belong to acetic acid?

A. Colourless liquid, odourless, sour taste

B. Bright colour bituer taste

C.Colourless solid, sour taste, pungent smell

D. All are incórreet

14 / 100

Category: Chemistry Ch 4 Class 12

Which statement is true for K2(Cu(CN)4) ?

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

A) Potassium tetra cyano cuprate

B) Coordination number is 2

C) The ligand is positively charged

D) Central atom is present in the anionic sphere

15 / 100

Category: Chemistry Ch 9 Class 12

Which of the following compounds will form a hydrocarbon on reaction with Grignard reagent?

NUMS 2014
Chemistry
Hydrocarbons
Elimination Tool:

A) CH3CH2OH

B) CH3COOCH3

C) CH3COCH3

D) CH3CHO

16 / 100

Category: Chemistry

Q.105 Ethane is obtained by electrolyzing-

A. Potassium format

B. Potassium succinate

C. Potassium acetate

D. Potassium fumarate

17 / 100

Category: Chemistry Ch 3 Class 11

Which of the following statements is true of Amorphous solids?

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

A) They possess symmetry

B) They are isotropic

C) They are anisotropic

D) They cleave along a particular direction

18 / 100

Category: Chemistry Ch 10 Class 11

Conversion of Electrical energy into chemical energy is

PMC Sample 1
Chemistry
Electrochemistry
Elimination Tool:

A) Mechanical Energy

B) Electromechanical Energy

C) Electrochemistry

D) Chemical Energy

19 / 100

Category: Chemistry Ch 8 Class 11

Buffer capacity depends upon

pH

pOH

Remains same

Both a and b

20 / 100

Category: Chemistry

Q.85 Along period of periodic table, shielding effect

A. Increases

B. Decreases

C. Remains constant

D. First increases then decrease

21 / 100

Category: Chemistry Ch 4 Class 12

In rhombic sulphur there are atoms in each molecule?

7

8

6

9

22 / 100

Category: Chemistry Ch 4 Class 11

When animals inhale air, oxygen will move into the lungs due to difference in partial pressure of oxygen in lungs and atmosphere. This obeys

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

A) Pascal's law

B) Dalton's law

C) Charles's law

D) Bohr's law

23 / 100

Category: Chemistry Ch 1 Class 11

The unit used to express the relative atomic mass is called?

Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

A) Gram unit.

B) Avigadro's number.

C) Atomic mass.

D) Atomic mass unit.

24 / 100

Category: Chemistry Ch 7 Class 11

Which of the following are the fundamental ways of transferring energy?

NUMS 2014
Chemistry
Thermochemistry
Elimination Tool:

A) Pressure and work

B) Volume and pressure

C) Heat and work

D) Pressure and heat

25 / 100

Category: Chemistry

By treating CO2 with Grignard’s reagent, the following compound is obtained;

NUMS Mock 2
Chemistry
Carboxylic Acids and its Derivatives

A) Aromatic compounds

B) Alcohols

C) Carboxylic acid

D) Ethers

26 / 100

Category: Chemistry Ch 16 Class 12

Which one of these Is toxic?

Nitrous oxide

Nitric oxide

Sulphur dioxide

Carbon dioxide

27 / 100

Category: Chemistry Ch 5 Class 11

The correct order of orbitals is:

1s,2s,2p,3s, 3p, 4s, 3d, 4p, 5s

1s,2s,2p,3s, 3p, 3d, 31, 4s, 5d

1s,2s,2p,3s, 3p, 3d, 4p, 4s, 5s

1s,2s,2p,3s, 3p, 4s, 4p, 4d, 5s

28 / 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

29 / 100

Category: Chemistry Ch 8 Class 12

In which of the following C-C bond length is the minimum?

Alkane

Alkene

Benzene

Same length in all

30 / 100

Category: Chemistry Ch 4 Class 11

Vapor pressure of a liquid depends upon

) Nature of liquid

Temperature

Both a and b

Atomic Pressure

31 / 100

Category: Chemistry Ch 10 Class 12

If products of a reaction act as a catalyst, such process is called:

NTS 2014
Chemistry
Alkyl Halides and Amines
Elimination Tool:

A) Positive catalyst

B) Negative catalyst

C) Auto catalyst

D) Both A and B

32 / 100

Category: Chemistry Ch 8 Class 11

Le Chatelier’s principle explains effect of all of the following except

Pressure

Temperature

Concentration

Time

33 / 100

Category: Chemistry

Q.13 Alkali metals group lies in_________?

A.d-block

B. s-bloc

C.f- block

D.P-block

34 / 100

Category: Chemistry Ch 4 Class 11

The variation in physical properties of a crystal due to direction is called

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

A) isotropy

B) entropy

C) anisotropy

D) none of these

35 / 100

Category: Chemistry Ch 11 Class 11

For which of the following order of the reaction, rate of reaction is inversely proportional to the concentration reaction?

PMC 2020
Chemistry
Reaction Kinetics
Elimination Tool:

A) 1st order reaction

B) 2nd order reaction

C) Negative order of reaction

D) Zero order of reaction

36 / 100

Category: Chemistry Ch 11 Class 12

The alcohols in which the carbon which is attach to the OH group is further attach with two carbon atoms is called as?

PMC Sample 2
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

A) Primary alcohols

B) Secondary alcohols

C) Tertiary alcohols

D) None of these

37 / 100

Category: Chemistry Ch 5 Class 11

The lightest positive rays obtained is from:

NUMS 2020
Chemistry
Atomic Structure
Elimination Tool:

A) Hydrogen gas

B) Helium

C) Neon

D) Air

38 / 100

Category: Chemistry Ch 6 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)

39 / 100

Category: Chemistry Ch 1 Class 12

Which of the following statements about H2S is false?

NTS 2017
Chemistry
Periodicity in Elements
Elimination Tool:

A) It is a covalent compound

B) It is a gas with bad smell

C) It is a stronger reducing agent than H2O

D) It is a weak base in water

40 / 100

Category: Chemistry Ch 1 Class 12

P2O5 is Hygroscopic powder which sublimes at:

NUMS 2015
Chemistry
Periodicity in Elements
Elimination Tool:

A) 260 Degree Celsius

B) 360 Degree Celsius

C) 630 Degree Celsius

D) 690 Degree Celsius

41 / 100

Category: Chemistry Ch 3 Class 12

silicon can be obtained from which one of the following compounds

Water

Sand

Potash

None

42 / 100

Category: Chemistry Ch 6 Class 11

An ionic compound is most likely to be formed when:

NUMS 2015
Chemistry
Chemical Bonding
Elimination Tool:

A) Ionization energy of A is high but electron affinity of B is low

B) The ionization energy of A is low but electron affinity of B is high

C) Both ionization energy of A and electron affinity of B are high

D) Both ionization energy of A and electron affinity of B are low

43 / 100

Category: Chemistry Ch 1 Class 11

How many significant figures are there in 0.4793?

NTS 2018
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

A) 3

B) 4

C) 5

D) 6

44 / 100

Category: Chemistry Ch 1 Class 11

Chemical properties of an atom depends upon number of

Electron

Neutrons

Protons

Nucleons

45 / 100

Category: Chemistry Ch 3 Class 11

For a given mass of gas, if the pressure is reduced to half and its temperature is doubled, then volume V will become?

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

A) 4V

B) 2V2

C) V/4

D) 8V

46 / 100

Category: Chemistry Ch 15 Class 12

Which of the following is a Marco-nutrient

Boron

Copper

Iron

Nitrogen

47 / 100

Category: Chemistry Ch 9 Class 11

The pH of a solution can be kept constant by:

2022 PMC Test 2
Chemistry
Solution and Colloids
Elimination Tool:

A) saturated solution

B) super saturated solution

C) buffer solution

D) dilute solution

48 / 100

Category: Chemistry Ch 3 Class 11

The Vander Waal’s constant ‘If of a gas Is four times the:

Actual volume

Volume of vessel

free volume

Volume

49 / 100

Category: Chemistry Ch 15 Class 12

[Ti(H2O)6]3+ transmits

UHS 2015
Chemistry
Environmental Chemistry
Elimination Tool:

A) Yellow and Red light

B) Yellow and Blue light

C) Red and white light

D) Red and blue light

50 / 100

Category: Chemistry Ch 4 Class 12

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

SO2

SCl2

H2SO4

H2S03

51 / 100

Category: Chemistry Ch 6 Class 12

Which metal is not attracted by magnet?

Copper

Zinc

Iron

Both a & b

52 / 100

Category: Chemistry Ch 8 Class 12

Physical properties of Ethyne is/are:

PreMedPK MDCAT Mock 3
Chemistry
Hydrocarbons
Elimination Tool:

A) It is colourless gas with a sweet smell.

B) It is sparingly soluble in water.

C) It is less dense than air.

D) It explodes on compression to a liquid because of unstable nature.

E) All of the above

53 / 100

Category: Chemistry Ch 7 Class 12

IUPAC name of the compound (CH3)2-CH-CH(C2H5)-C(CH3)3 is :

NTS 2015 SMBBMC
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

A) 3-ethyl-2,2,4-trimethyl pentane

B) 3-ethyl-2,2,4-trimethyl pentene

C) 3-ethyl- 2,4-dimethyl pentane

D) 4-ethyl, 3 methyl hexane

54 / 100

Category: Chemistry

Q.96 If increase in temperature and volume of an ideal gas is two times, then the initial pressure p charge to

A. 4P

B. 2P

C. P

D. 3P

55 / 100

Category: Chemistry Ch 4 Class 11

Which of the following properties does not belong to Gases?

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

A) Indefinite volume

B) Indefinite shape

C) Low density

D) Strong interactions

56 / 100

Category: Chemistry

Aromatic compounds burn with a sooty flame because:

NUMS Mock 3
Chemistry
Fundamental Principles of Organic Chemistry

A) They are resistant to react with oxygen

B) They have a cyclic structure

C) They have a high percentage of Carbon

D) They have a high percentage of hydrogen

57 / 100

Category: Chemistry Ch 13 Class 12

What is the product of both fermentation reactions and fractional distillation:

NTS 2010
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

A) An ester

B) An acid

C) An alcohol

D) A soap

58 / 100

Category: Chemistry Ch 12 Class 12

Oxidation of alcohol converts it into?

Aldehyde

Tertiary Alcohol

Alkane

Carboxylic Acid

59 / 100

Category: Chemistry Ch 15 Class 12

The acid rain water has pH:

UHS 2012
Chemistry
Environmental Chemistry
Elimination Tool:

A) Below 5

B) 7

C) Between 5 and 7

D) Between 7 and 14

60 / 100

Category: Chemistry Ch 5 Class 11

Which orbitals always possess same energy:

Hybrid orbitals

Degenerate orbitals

None of these

Both a and b

61 / 100

Category: Chemistry Ch 2 Class 12

Which of the following is chrome yellow’s pigment?

NTS 2015 SMBBMC
Chemistry
s and p Block Elements
Elimination Tool:

A) Pb2Cr2O5

B) PbCrO4.PbO

C) PbCrO4

D) PbCl2.4PbO

62 / 100

Category: Chemistry Ch 5 Class 11

The Balmer series lies in which region of the electromagnetic spectrum?

NTS 2015 DUHS and JSMU
Chemistry
Atomic Structure
Elimination Tool:

A) Ultraviolet

B) Visible

C) Infrared

D) Microwave

63 / 100

Category: Chemistry Ch 15 Class 12

What is formed by a series of complex reactions of ozone with water in the troposphere that are driven by sunlight?

NUMS 2019 Cancelled
Chemistry
Environmental Chemistry
Elimination Tool:

A) O radical

B) H radical

C) OH radical

D) H3O radical

64 / 100

Category: Chemistry Ch 1 Class 11

Different kinds of atoms of the same element are called isotope having different __________but same ___________ properties.

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

A) Physical, atomic

B) Physical, chemical

C) Chemical, physical

D) Chemical, atomic

65 / 100

Category: Chemistry Ch 12 Class 12

What should be added to methane to produce HCN?

Ammonia

Nitrogen

Water

H+

66 / 100

Category: Chemistry Ch 15 Class 12

What is used in cement manufacture?

Limestone

Starch

Potassium Oxide

Both a and b

67 / 100

Category: Chemistry Ch 8 Class 11

For a reversible reaction to reach an equilibrium state the reaction should be carried out in:

Glass vessel

Iron vessel

Open vessel

Closed vessel

68 / 100

Category: Chemistry Ch 13 Class 12

Cyanohydrins when reacted with mineral acid produces ________?

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

A) Beta Hydroxy carboxylic acids

B) Alpha hydroxy carboxylic acids

C) Carboxylic acids

D) Unsaturated acids

69 / 100

Category: Chemistry Ch 16 Class 12

The formula of “rock salt” is:

NTS 2012
Chemistry
Environmental Chemistry
Elimination Tool:

A) NaOH

B) NaHCO3

C) Na2CO3

E) NaCl

70 / 100

Category: Chemistry

The radiations from a naturally occurring radioactive substance, as seen after deflection by a magnetic field in one direction, are:

NUMS Mock 2
Chemistry
Analytical Chemistry

A) Definitely Alpha-rays

B) Definitely Beta-rays

C) Both Alpha and Beta rays

D) Either Alpha or Beta rays

71 / 100

Category: Chemistry Ch 3 Class 12

Which one of the following is an acid?

H3BO3

Al(0H)3

Ca(0H)2

NaOH

72 / 100

Category: Chemistry

liquid whose thermodynamic property do not de ti)upon intermolecular forces Is

Mercury

None of these

Ethylene glycol

Acetone pond

73 / 100

Category: Chemistry

Phenylmethyl ketone can be converted into ethyl benzene in one step by using:

NUMS Mock 4
Chemistry
Aldehydes and Ketones

A) LiAlH4

B) Zn(Hg)-HCl

C) NaBH4

D) CH3Mgl

74 / 100

Category: Chemistry

Which one of the following reagents is used to distinguish between aldehydes and ketones?

NUMS Mock 1
Chemistry
Aldehydes and Ketones

A) Alkaline Iodine

B) Tollen’s Reagent

C) Bromine

D) 2, 4 DNPH

75 / 100

Category: Chemistry

Which one of the following alkaline earth metal carbonates is thermally the most stable?

NUMS Mock 3
Chemistry
s and p Block Elements

A) BaCO3

B) MgCO3

C) CaCO3

D) SrCO3

76 / 100

Category: Chemistry Ch 8 Class 11

The value K for H2(g) + CO2(g) H2O(g) + CO(g) is 1.80 at 1000 C. If 1.0 mole of each H2 and CO2 are placed in 1 litre flask, the final equilibrium concentration of CO at 1000 C will be:

NTS 2017
Chemistry
Chemical Equilibrium
Elimination Tool:

A) 0.295 M

B) 0.385 M

C) 0.531 M

D) 0.473 M

77 / 100

Category: Chemistry Ch 9 Class 12

All of the following react with KMnO4 except

NUMS 2017
Chemistry
Hydrocarbons
Elimination Tool:

A) Ethane

B) Ethyne

C) Ethylbenzene

D) Ethene

78 / 100

Category: Chemistry Ch 10 Class 11

Stronger the oxidizing agent, higher is the:

NUMS 2019 Reconduct
Chemistry
Electrochemistry
Elimination Tool:

A) Emf of cell

B) Oxidation potential

C) Reduction potential

D) Redox potential

79 / 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

80 / 100

Category: Chemistry Ch 8 Class 11

When 18 x 10-3 moles/dm3 of acetic acid react with 22 x 10-3 moles/dm3 of ethyl alcohol to form 40 x 10-3 moles/dm3 of ethyl acetate and 40 x 10-3 moles/dm-3 of water. Find the value of equilibrium constant (kc):

NTS 2010
Chemistry
Chemical Equilibrium
Elimination Tool:

A) 4.04

B) 3.14

C) 3.04

D) 2.02

81 / 100

Category: Chemistry Ch 5 Class 12

Oxides of xenon are formed from:

XeF6

XeF4

XeF2

All of these

82 / 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

83 / 100

Category: Chemistry

Q.147 Plasma “the fourth state of matter was identified by

A. Berzelius

B. William Crooks

C. Dalton

D. Rutherford

84 / 100

Category: Chemistry Ch 2 Class 12

Which of the following is not true about caustic soda? a) It causes painful burns c) It is manufactured by Costner—Kellner process e) Both b and d

) It causes painful burns

It is manufactured by Costner—Kellner process

Both b and d

b) It has purgative smell

d) It is used os on anti-acid

85 / 100

Category: Chemistry

Q.180 Enzymes speed up the reaction upto

A. 10^10

B. 200^10

C.10^20

D.150^10

86 / 100

Category: Chemistry Ch 1 Class 11

Which of the following molecule is expressed in empirical formula:

C6H12O6

C6H6

Na2S4O6

C2 H5

87 / 100

Category: Chemistry Ch 9 Class 12

Which of the following is NOT explained by Kekule structure of benzene?

PMC Sample 2
Chemistry
Hydrocarbons
Elimination Tool:

A) Hexagonal planar structure

B) The usual saturated behaviour of benzene

C) Unsaturation

D) Presence of three double bonds

88 / 100

Category: Chemistry Ch 11 Class 11

Methyl orange is _______ in acidic solutions.

NTS 2018
Chemistry
Acids, Bases and Salts
Elimination Tool:

A) Yellow

B) Pink

C) Orange

D) Red

89 / 100

Category: Chemistry Ch 2 Class 12

Which one of the following is a common mineral of calcium? a

Feldspar

Limestone

Diamond

None of these

90 / 100

Category: Chemistry Ch 1 Class 12

Non-stoichiometric compounds are formed by:

NTS 2013
Chemistry
Periodicity in Elements
Elimination Tool:

A) Only alkali metals

B) Only transition elements

C) Only noble gases

D) None of the above

91 / 100

Category: Chemistry Ch 2 Class 12

Aqueous solution of Na2CO3is:

NTS 2011
Chemistry
s and p Block Elements
Elimination Tool:

A) Acidic

B) Alkaline

C) Both Acidic and Alkaline

D) Neutral

92 / 100

Category: Chemistry Ch 4 Class 11

H2 and O2 are diffusing under the same condition how much H2 gas will diffuse?

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

A) 4

B) 16

C) 32

D) 0.5

93 / 100

Category: Chemistry Ch 7 Class 11

Enthalpy of a compound is equal to its

NUMS 2016
Chemistry
Thermochemistry
Elimination Tool:

A) Heat of combustion

B) Heat of formation

C) Heat of solution

D) Heat of dilution

94 / 100

Category: Chemistry Ch 7 Class 12

In SN1 reaction “1” stands for?

NTS 2016 SMBBMC
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

A) Polar solvents

B) Unimolecular

C) Bimolecular

D) Nucleophile

95 / 100

Category: Chemistry Ch 12 Class 12

IUPAC Name of formaldehyde is

Ethanol

Methanal

c) Ethanol

Methyl alcohol

96 / 100

Category: Chemistry

The stability in the following structure is due to the:

NUMS Mock 4
Chemistry
Chemical Bonding

A) Weak van der Waal’s forces

B) Disulfide bridges

C) Presence of unpaired electron in the structure

D) Hydrogen bonding between NH group of one peptide and CO group of another peptide

97 / 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

98 / 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

99 / 100

Category: Chemistry

Example of nucleophile is:

NUMS Mock 3
Chemistry
Fundamental Principles of Organic Chemistry

A) BF3

B) SO3

C) AlCl3

D) CN

100 / 100

Category: Chemistry Ch 9 Class 11

In depression of freezing point, freezing constant Is divided by

Molarity

Molality

Molar fraction

All of these

Your score is

The average score is 54%

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