Chemistry Practice Tests 2

Created by Ali Durrani

NET Practice

Chemistry Practice Test 2

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1 / 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

2 / 100

Category: Chemistry Ch 7 Class 12

The number of isomers of C3H7-Cl are _______

NUMS 2017
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

A) 2

B) 3

C) 4

D) 6

3 / 100

Category: Chemistry Ch 3 Class 12

Aluminium is in Nature

Acidic

Basic

Amphoteric

Salt

4 / 100

Category: Chemistry Ch 10 Class 11

Which of the following exhibits an oxidation state of -3?

P

0

CI

Na

5 / 100

Category: Chemistry Ch 7 Class 12

Which of the following intermediate has the complete octet around the carbon atom.

NUMS 2018
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

A) Free radical

B) Carbanion

C) Carbonium ion

D) None of these

6 / 100

Category: Chemistry Ch 5 Class 11

Diameter of Hydrogen atom is?

105.8 x 10-2 A

1.061 A

0.55 A

131.3 x 10-2A

7 / 100

Category: Chemistry Ch 15 Class 12

Which one of the following pollutants can cause death of a person by binding with
haemoglobin of red blood cells?

UHS 2014
Chemistry
Environmental Chemistry
Elimination Tool:

A) Chlorofluorocarbons

B) Oxides of Sulphur

C) Carbon monoxide

D) Oxides of nitrogen

8 / 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

9 / 100

Category: Chemistry Ch 10 Class 11

Each half reaction in ion electron method is balanced by adding:

PMC Sample 1
Chemistry
Electrochemistry
Elimination Tool:

A) Electrons on left hand side

B) Electrons on right hand side

C) Both left or right hand side

D) None of these options are correct

10 / 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

11 / 100

Category: Chemistry Ch 8 Class 12

20 cm3 of a gaseous hydrocarbon was completely burnt in an excess of oxygen 60 cm3 of carbon dioxide and 40 cm3 of water vapours were formed, all volumes being measured at the same temperature and pressure. What is the formula of the hydrocarbon?

NTS 2015 SMBBMC
Chemistry
Hydrocarbons
Elimination Tool:

A) C2H6

B) C3H4

C) C3H6

D) C3H8

12 / 100

Category: Chemistry Ch 5 Class 11

For a multi-electron atom, the highest energy level among the following is:

NTS 2013
Chemistry
Atomic Structure
Elimination Tool:

A) n = 5, l = 0, m = 0 , s = + ½

B) n= 4 , l = 0 , m = 0 , s = – ½

C) n= 3 , l = 1, m = 1 , s = – ½

D) n= 5 , l = 1 , m = 0 , s = + ½

13 / 100

Category: Chemistry

Maleic Acid and Fumaric Acid are:

NUMS Mock 3
Chemistry
Fundamental Principles of Organic Chemistry

A) Cis-Trans isomers

B) chain isomers

C) position isomers

D) metamers

14 / 100

Category: Chemistry Ch 7 Class 12

Which of the following compounds has the empirical formula, (CH2O) and reacts with sodium hydroxide?

NUMS 2019 Cancelled
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

A) Carbonic acid

B) Ethanol

C) Acetic acid

D) Methanoic acid

15 / 100

Category: Chemistry Ch 15 Class 12

Which one of the following polymer is called as Nylon 6,6?

UHS 2016
Chemistry
Industrial Chemistry
Elimination Tool:

A) Polyester

B) Polyvinyl chloride

C) Polyamide

D) Polyvinyl acetate

16 / 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

17 / 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

18 / 100

Category: Chemistry Ch 14 Class 12

All are dehydrating agents for alcohols to produce alkene except:

NTS 2016 DUHS & JSMU
Chemistry
Macromolecules
Elimination Tool:

A) Al2O3

B) P2O5

C) Dilute H2SO4

D) H3PO4

19 / 100

Category: Chemistry

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

NUMS Mock 2
Chemistry
Thermochemistry

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.

20 / 100

Category: Chemistry Ch 14 Class 12

The melting point of NaCl is very high, 801°C. It is reduced to 600°C by the addition of _______ in Down’s process.

NTS 2018
Chemistry
Macromolecules
Elimination Tool:

A) Calcium chloride

B) Magnesium chloride

C) Aluminium chloride

D) Potassium chloride

21 / 100

Category: Chemistry Ch 11 Class 12

The method which is used on an industrial scale for production of alcohol from alkene is:

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

A) Hydrohalogenation of alkenes

B) Dehydration of alkenes

C) Hydration of alkenes

D) Hydroxylation of alkenes

22 / 100

Category: Chemistry

Stronger the oxidizing agent, higher is the:

NUMS Mock 2
Chemistry
Electrochemistry

A) Emf of cell

B) Oxidation potential

C) Reduction potential

D) Redox potential

23 / 100

Category: Chemistry Ch 13 Class 12

Hydrolysis of Nitriles produces:

NUMS 2020
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

A) Carboxylic acid

B) Aldehydes

C) Ketones

D) Esters

24 / 100

Category: Chemistry

While finding the relative atomic mass, which of the following standard is used to compare the atomic mass of chlorine (35.5 amu)

NUMS Mock 1
Chemistry
Stoichiometry

A) Carbon – 13

B) Neon – 20

C) Carbon – 12

D) Nucleon number

25 / 100

Category: Chemistry Ch 13 Class 12

The same carboxylic acid is obtained either by hydrolysis of a nitrite X or by oxidation of alcohol Y. Which pair could be X and Y? X Y

a

b

c

d

26 / 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

27 / 100

Category: Chemistry Ch 2 Class 12

Which is the paramagnetic oxide of chlorine?

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

A) Cl2O7

B) Cl2O6

C) ClO2

D) ClO4

28 / 100

Category: Chemistry Ch 8 Class 11

If concentration of OH- Ions Is 0.1 molar. What Is the pH of the solution?

13

9

6

3

29 / 100

Category: Chemistry Ch 10 Class 12

In alkyl halide, the halide ion has charge on it when attached to C-atom.

Positive

Negative

Partial positive

Partial negative

30 / 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

31 / 100

Category: Chemistry Ch 11 Class 11

In general Photochemical reactions are of order

PMC Sample 1
Chemistry
Reaction Kinetics
Elimination Tool:

A) 1

B) 3

C) 2

D) 0

32 / 100

Category: Chemistry Ch 8 Class 12

The electrophilic reactions of Benzene are:

NTS 2011
Chemistry
Hydrocarbons
Elimination Tool:

A) Halogenation

B) Nitration

C) Sulphonation

D) Alkylation and Acylation

E) All of these

33 / 100

Category: Chemistry Ch 9 Class 12

Acetylene upon heating at 300 C gives:

Benzene

Alkene

Alkane

Alcohol

34 / 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

35 / 100

Category: Chemistry Ch 11 Class 12

Ethers are very good:

Solvent

Oxidizing agen

Reducing agent

Dehydrating agent

36 / 100

Category: Chemistry Ch 1 Class 11

0.5 mole of SO2 contains gram of oxygen?

32

12

16

None

37 / 100

Category: Chemistry Ch 13 Class 12

Fatty Acids are:

Aliphatic Monocarboxylic Acids

Obtained from sugars

Contain a suffix "al"

With low boiling point

38 / 100

Category: Chemistry Ch 11 Class 12

The compound ‘leaf alcohol’ is partly responsible for the smell of new – mown grass

CH3CH2CH=CHCH2CH2OH

Leaf alcohol

Which two compounds will be formed when ‘leaf alcohol’ is oxidized using hot, concentrated manganate (VII) ions?

NUMS 2018
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

A) CH3CO2H and HOCH2CH2CH2CO2H

B) CH3CO2H and HO2CCH2CH2CO2H

C) CH3CH2CO2H and HO2CCH2CO2H

D) CH3CH2CO2H and HOCH2CH2CO2H

39 / 100

Category: Chemistry Ch 2 Class 12

Which of the following is unstable?

Li2CO3

MgCO3

c) Both a and b

Both are stable

40 / 100

Category: Chemistry Ch 2 Class 12

Which of the following compounds is formed when sodium burns in excess of air?

NTS 2014
Chemistry
s and p Block Elements
Elimination Tool:

A) Na2O

B) Na2O3

C) Na2O2

D) NaO2

41 / 100

Category: Chemistry

Q.93 The ionizatior energy of group _____________shows abnormal trend

A. 3A & 4A

B. SA &6A

C. 6A & 4A

D. 3A & 6A

42 / 100

Category: Chemistry Ch 2 Class 11

is the process of transition of a substance directly from the solid to the gas phase without passing through the intermediate liquid phase.

Vaporization

Evaporation

Sublimation

None of these

43 / 100

Category: Chemistry

Which of the following does not give iodoform test?

NUMS Mock 1
Chemistry
Aldehydes and Ketones

A) Ethanol

B) Ethanal

C) Acetophenone

D) Benzophenone

44 / 100

Category: Chemistry

Q.72 4 mole of NO and 0.9mole of CO2 are mixed initially according to equation At equilibrium, 0.1 mol of CO2 is present. The value of Kc is

A. 0.2

B. 2.0

C. 5.0

D. 1.6

45 / 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

46 / 100

Category: Chemistry

Q.81 Conjugate base of a weak acid is

A. Weak

B. Strong

C.Unstable

D. None of these

47 / 100

Category: Chemistry Ch 13 Class 12

Which of the following is not an aromatic compound)

Picric

Phthalic acid

Tartaric acid

Salicylic acid

48 / 100

Category: Chemistry Ch 2 Class 12

Which of the following elements has the highest boiling point?

NTS 2014
Chemistry
s and p Block Elements
Elimination Tool:

A) Li

B) Mg

C) Sr

D) Be

49 / 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

50 / 100

Category: Chemistry Ch 8 Class 12

In Alkenes the Carbon atoms are connected to each other by a

Single bond

Double bond

Triple bond

Not connected

51 / 100

Category: Chemistry Ch 7 Class 11

Lattice Energy of ionic compounds are found by

PMC Sample 3
Chemistry
Chemical Bonding
Thermochemistry
Elimination Tool:

A) Hess' law

B) Born Habers Cycle

C) Law of Mass action

D) Law of conservation of mass

52 / 100

Category: Chemistry Ch 8 Class 11

For, the reaction:

N2 + 3H2 ⇌ 2NH3

The production of NH3 will be favored at:

NTS 2010
Chemistry
Chemical Equilibrium
Elimination Tool:

A) High pressure and catalyst

B) Low pressure only

C) Low pressure and catalyst

D) High pressure only

53 / 100

Category: Chemistry

Q.79 Salt Bridge is used for the purpose of

A. Producing Electrons

B. Circuit Completion

C. Increasing speed electrons

D. All of these

54 / 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.

55 / 100

Category: Chemistry Ch 15 Class 12

Percentage of nitrogen in urea is:

92

68

46

48

56 / 100

Category: Chemistry

Q.149 There are just only a few stable compounds, formed by noble gases like

A. XeF2

B. XeOF2

C. Xe3

D. All of these

57 / 100

Category: Chemistry Ch 14 Class 12

Chlorine is manufactured commercially by the electrolysis of aqueous sodium chloride (brine). Which other products are made in this process?

NTS 2010
Chemistry
Macromolecules
Elimination Tool:

A) Hydrochloric acid and hydrogen

B) Hydrogen and sodium

C) Hydrogen and sodium hydroxide

D) Sodium and sodium hydroxide

58 / 100

Category: Chemistry Ch 8 Class 11

Equilibrium constant has no units if?

The number moles are same on both sides of the chemical equation

The number of moles is different on both sides.

The number of moles is greater in the product

If the rate of reaction is constant

59 / 100

Category: Chemistry Ch 1 Class 12

Which statement is true about electron affinity?

NUMS 2020
Chemistry
Periodicity in Elements
Chemical Bonding
Elimination Tool:

A) The value of electron affinity is always positive

B) The value of electron affinity is always negative

C) The value of first electron affinity is always positive

D) The value of first electron affinity is always negative

60 / 100

Category: Chemistry Ch 7 Class 12

Isomerism is:

Same molecular formula but different structure

Same molecular formula and same structure

Different molecular formula but same structure

None of these

61 / 100

Category: Chemistry

The shielding effect of inner electrons is responsible for:

NUMS Mock 3
Chemistry
Atomic Structure

A) Decreasing ionization energy

B) Having no effect on ionization energy

C) Increasing ionization energy

D) Increasing electronegativity

62 / 100

Category: Chemistry

Q.170 Which of the following is not a mixture of hydrocarbons?

A. Candle wax

B. Kerosine oil

C. Paraffin oil

D. Vegetable ghee

63 / 100

Category: Chemistry Ch 14 Class 12

Which of the following enzyme is used for conversion of Starch into Sugar?

Zymase

Invertase

Amylase

Yeast

64 / 100

Category: Chemistry Ch 2 Class 11

22.4 dm3 of volume of each H2 and O2 are sparked to produce water vapours (considered as ideal gas) on completion of reaction. What is the decrease in the volume of the vessel?

NTS 2016 SMBBMC
Chemistry
Stoichiometry
Elimination Tool:

A) 44 dm3

B) 22.4 dm3

C) 33.6 dm3

D) 11.2 dm3

65 / 100

Category: Chemistry Ch 10 Class 12

Which of the following has the strongest bond?

NUMS 2019 Cancelled
Chemistry
Alkyl Halides and Amines
Elimination Tool:

A) CH3 – F

B) CH3 – I

C) CH3 – Cl

D) CH3 – Br

66 / 100

Category: Chemistry Ch 1 Class 11

In mass spectrometry, ionization occurs in form.

Solid

Liquid

Vapor

No ionization occurs during the process.

67 / 100

Category: Chemistry Ch 4 Class 12

F-block elements are called?

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

A) Inner transition

B) Outer transition

C) Both

D) None

68 / 100

Category: Chemistry Ch 6 Class 11

GN lewis described which one of the following bonds?

NTS 2015 SMBBMC
Chemistry
Chemical Bonding
Elimination Tool:

A) Ionic bond

B) covalent bond

C) coordinate covalent bond

D) all of the above

69 / 100

Category: Chemistry Ch 14 Class 12

Part of a polymer molecule has the following structure. -CH2 -CH2 -CH2 -CH2 -CH2 -CH2-

NUMS 2016
Chemistry
Macromolecules
Elimination Tool:

A) C2H4

B) C2H6

C) C3H6

D) C3H8

70 / 100

Category: Chemistry Ch 4 Class 11

Which statement about liquids is not correct?

Can diffuse

Have definite volume

Molecules have negligible K.E

All

71 / 100

Category: Chemistry Ch 3 Class 11

The expression PV = nRT represents the:

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

A) Dalton’s Law

B) Avogadro’s Law

C) General gas equation

D) Van der Waals equation

72 / 100

Category: Chemistry

Q.174 The alcohols which are resistant to oxidation reactions are

A. Primary alcohols

B. Secondary alcohol

C. Tertiary alcohol

D. All of above

73 / 100

Category: Chemistry Ch 4 Class 12

H2SO4 is used in industries of?

Paint

Textile

Rubber

Aluminum

74 / 100

Category: Chemistry

Q.152 Enzymes are in nature.

A. Proteins

B. Carbohydrates

C. Lipids

D. Nucleic acid

75 / 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

76 / 100

Category: Chemistry Ch 7 Class 12

Na, Ca & Mg are

Organic

Inorganic non-metals

) Inorganic metals

Organic metals

77 / 100

Category: Chemistry Ch 4 Class 11

Which of the following is an assumption of the kinetic model of an ideal gas?

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

A) Gas is at high pressure

B) Collision between particles are elastic

C) There are weak forces of attraction between particles in gas

D) Total energy of particles is proportional to the temperature

78 / 100

Category: Chemistry Ch 1 Class 11

Which of the following has six isotopes?

PMC Practice 27
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

A) Cadmium

B) Tin

C) Palladium

D) Carbon

79 / 100

Category: Chemistry Ch 14 Class 12

Formula of fructose is:

C6H1206

C4H204n

C5H10O5

C5H10O6

80 / 100

Category: Chemistry Ch 5 Class 11

d subshell has

3 orbitals

5 orbitals

7 orbitals

12 orbitals

81 / 100

Category: Chemistry Ch 4 Class 12

Formula of laughing gas is?

NO

NH4

N20

NO3

82 / 100

Category: Chemistry Ch 13 Class 12

In esterification, alcohol reacts with:

Acetaldellye

Halogens

Carboxylic acid

None

83 / 100

Category: Chemistry

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

0

1

2

3

84 / 100

Category: Chemistry Ch 6 Class 11

Which of the following has maximum Hydration power?

NUMS 2015
Chemistry
Chemical Bonding
Elimination Tool:

A) Na+

B) K+

C) Be2+

D) Ca+2

85 / 100

Category: Chemistry Ch 6 Class 11

The compound in which carbon uses only its sp3 – hybrid orbitals for bond formation is?

NTS 2015 DUHS and JSMU
Chemistry
Chemical Bonding
Elimination Tool:

A) HCOOH

B) (CH3)3COH

C) NH2CONH2

D) (CH3)3C – CHO

86 / 100

Category: Chemistry Ch 14 Class 12

Industrially water gas is converted into methanol by using catalyst:

NUMS 2019 Reconduct
Chemistry
Macromolecules
Elimination Tool:

A) CuO + ZnO

B) CuO + Cr2O3

C) Al2O3+ ZnO

D) ZnO + Cr2O3

87 / 100

Category: Chemistry Ch 6 Class 11

Ionization potential

Increases down the group

Decreases down the group

Stay same

None

88 / 100

Category: Chemistry Ch 3 Class 12

Identify from the following the example in which the complex is an anion:

NTS 2016 SMBBMC
Chemistry
d and f Block Elements
Elimination Tool:

A) [Co(en)3](NO3)3

B) [Co(NH3)3(NO2)3]

C) K3[Co(NO2)6]

D) [Pt(NH3)2Cl4]T

89 / 100

Category: Chemistry Ch 4 Class 11

A liquid has mass m and specific heat capacity c. The rate of change in temperature of the liquid is R. What is the rate at which heat is transferred from the liquid.

PMC Practice 2
Physics
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Rmc

B) R/me

C) me/R

D) Rm/c

90 / 100

Category: Chemistry

AgCI is in water.

Partially soluble b)

Completely soluble

Not soluble

None of these

91 / 100

Category: Chemistry Ch 10 Class 12

SN2 reactions can be best carried out with:

NTS 2019
Chemistry
Alkyl Halides and Amines
Elimination Tool:

A) Primary alkyl halides

B) Secondary alkyl halides

C) Tertiary alkyl halides

D) Both primary and tertiary alkyl halides

92 / 100

Category: Chemistry

Which of the following gas, when ignited, burns with a blue flame and is not very soluble in water?

NUMS Mock 4
Chemistry
s and p Block Elements
Environmental Chemistry

A) O2

B) CO2

C) N2

D) He

93 / 100

Category: Chemistry Ch 7 Class 11

Exothermic Reactions heat is

PMC Sample 2
Chemistry
Thermochemistry
Elimination Tool:

A) Taken in

B) Give out to surroundings

C) Neither given nor lost

D) None of these

94 / 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

95 / 100

Category: Chemistry Ch 5 Class 11

The atomic number Z of an atom represents the:

NTS 2018
Physics
Atomic Structure
Elimination Tool:

A) Number of protons

B) Number of electrons and protons

C) Number of neutrons

D) Sum of protons and neutrons

96 / 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

97 / 100

Category: Chemistry Ch 14 Class 12

Chloroform is used as the following except:

NUMS 2015
Chemistry
Macromolecules
Elimination Tool:

A) Precursor of making Teflon

B) Precursor of making refrigerants

C) Anaesthetic

D) Embalming chemicals

98 / 100

Category: Chemistry

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

A. Red

B. White

C. Brown

D. Pinkish

99 / 100

Category: Chemistry Ch 4 Class 12

Au3+ has __________ configuration.

PMC Practice 5
Chemistry
d and f Block Elements
Elimination Tool:

A) 5d7

B) 4d9

C) 5d8

D) 5d10

100 / 100

Category: Chemistry Ch 4 Class 12

The chemical name of K2[Zn(OH)4] is:

NTS 2019
Chemistry
d and f Block Elements
Elimination Tool:

A) Potassium tetrahydroxyzinc (II)

B) Potassium tetrahydroxozincate (II)

C) Potassium tetrahydroxyzincate (VI)

D) Potassium hydroxyzinc (II)

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