Chemistry Practice Tests 3

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Chemistry Practice Test 3

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1 / 100

Category: Chemistry

Q.104 The maximum number of electrons accommodated in a shell or energy level is calculated by formula

A.n^2

B. 2n^2

C. 2n

D.3n

2 / 100

Category: Chemistry Ch 1 Class 11

The total number of neutrons in 5g of H2O are:

1 NA = 6.023 x 1023

PMC Practice 18
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

A) 25 NA

B) 1.1 NA

C) 2.5 NA

D) 0.5 NA

3 / 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

4 / 100

Category: Chemistry Ch 3 Class 12

Valence electronic configuration Cu+2 is (29Cu)

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

A) 5d6

B) 3d9

C) 3d8

D) 3d7

5 / 100

Category: Chemistry Ch 14 Class 12

For which mechanism the first step involved is the same?

NTS 2016 DUHS & JSMU
Chemistry
Macromolecules
Elimination Tool:

A) E1 and E2

B) SN1 and E2

C) E1 and SN2

D) E1 and SN1

6 / 100

Category: Chemistry Ch 5 Class 11

Which of the following is the electronic configuration of 19K?

NUMS 2016
Chemistry
Atomic Structure
Elimination Tool:

A) 1s2, 2s2, 2p6, 3s2, 3p6, 4s2

B) 1s2, 2s2, 2p6, 3s2, 3p6, 3s2, 3d1

C) 1s2, 2s2, 2p6, 3s2, 3p6, 4s2, 3d5

D) 1s2, 2s2, 2p6, 3s2, 3p6, 4s1

7 / 100

Category: Chemistry Ch 14 Class 12

Formula of fructose is:

C6H1206

C4H204n

C5H10O5

C5H10O6

8 / 100

Category: Chemistry Ch 7 Class 12

Which process is used to produce volatile compounds?

Reforming

Cracking

Polymerization

Distillation

9 / 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

10 / 100

Category: Chemistry Ch 6 Class 11

Which of the following has maximum Ionization energy?

He

Ne

Ar

Kr

11 / 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

12 / 100

Category: Chemistry Ch 11 Class 12

Phenol is a(n) ________ liquid?

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

A) Dense

B) Hard

C) Deliquescent

D) Intermittent

13 / 100

Category: Chemistry

Sodium Benzoate on reacting with soda lime forms:

NUMS Mock 4
Chemistry
Carboxylic Acids and its Derivatives

A) Benzoic Acid

B) Benzene

C) Toluene

D) Benzaldehyde

14 / 100

Category: Chemistry Ch 13 Class 12

Carboxylic acid reduction to alcohol can be achieved by using?

PMC Sample 3
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

A) H₂/Ni

B) Pd/C

C) NaBH₄

D) LiAlH₄

15 / 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

16 / 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

17 / 100

Category: Chemistry Ch 8 Class 12

How many chain isomers are shown by C5H12?

PreMedPK MDCAT Mock 4
Chemistry
Hydrocarbons
Elimination Tool:

A) 5

B) 4

C) 3

D) 2

18 / 100

Category: Chemistry Ch 12 Class 12

Which of the following reactions is NOT shown by ketones?

NTS 2018
Chemistry
Aldehydes and Ketones
Elimination Tool:

A) Reaction with HCN

B) Reaction with Fehling solution

C) Reaction with NaHSO3

D) Reaction with 2,4-dinitrophenyl-hydrazine

19 / 100

Category: Chemistry Ch 11 Class 11

Solar energy is stored through solar panels in?

Dry cell

Magnesium cell

Nickel Cadmium battery

None of these

20 / 100

Category: Chemistry Ch 9 Class 12

The carbon number of gasoline is:

NTS 2019
Chemistry
Hydrocarbons
Elimination Tool:

A) C5 – C6

B) C6 – C7

C) C5 – C10

D) C12 – C15

21 / 100

Category: Chemistry Ch 9 Class 11

Molal freezing point constant of water is:

UHS 2013
Chemistry
Solution and Colloids
Elimination Tool:

A) 1.86

B) 2.86

C) 11.86

D) 0.52

22 / 100

Category: Chemistry

Choose the correct statement:

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

A) Diamond is the hardest and graphite is softest

B) Graphite is the hardest while lamp black is softest

C) Coal is the hardest and coke is softest

D) Diamond is the hardest and coke is softest

23 / 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

24 / 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

25 / 100

Category: Chemistry Ch 6 Class 11

The dipole moments of the given molecules (BF3, NF3, NH3) are such that:

NTS 2015 DUHS and JSMU
Chemistry
Chemical Bonding
Elimination Tool:

A) BF3 > NF3>NH3

B) NF3 > BF3> NH3

C) NH3 > NF3 > BF3

D) NH3 >BF3 > NF3

26 / 100

Category: Chemistry Ch 11 Class 12

Alkoxicies react with alkyl halide to form? a

Ether

Ester

Carboxylic acid

alcohol

27 / 100

Category: Chemistry Ch 1 Class 11

In mass spectrometry, ionization occurs in form.

Solid

Liquid

Vapor

No ionization occurs during the process.

28 / 100

Category: Chemistry

Carboxylic acids can be reduced to corresponding alcohols. Which of the following reagent can be used for this purpose?

NUMS Mock 2
Chemistry
Carboxylic Acids and its Derivatives

A) KMnO4

B) LiAlH4

C) K2Cr2O4

D) H2SO4

29 / 100

Category: Chemistry Ch 14 Class 12

Harmful and undesirable reaction of a metal when exposed to the atmosphere or any chemical agent is known as:

NTS 2010
Chemistry
Macromolecules
Elimination Tool:

A) Allotropy

B) Electroplating

C) Collision

E) Corrosion

30 / 100

Category: Chemistry Ch 14 Class 12

Allotropes are of same?

PMC Practice 2
Chemistry
Macromolecules
Elimination Tool:

A) Compounds

B) Molecules

C) Ions

D) Elements

31 / 100

Category: Chemistry Ch 9 Class 12

In which of the following cases are the benzene rings isolated?

NUMS 2015
Chemistry
Hydrocarbons
Elimination Tool:

A) Naphthalene

B) Phenanthrene

C) Anthracene

D) Triphenylmethane

32 / 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-

33 / 100

Category: Chemistry

Q.122 An orbital can accommodate at the most______________electrons

A.2

B.14

C. 1

D. 6

34 / 100

Category: Chemistry Ch 6 Class 11

Which of the following molecules have zero Dipole moments?

NTS 2011
Chemistry
Chemical Bonding
Elimination Tool:

A) CCl4

B) CO2

C) Cl2

D) C6H6

E) All of the above

35 / 100

Category: Chemistry Ch 5 Class 11

How many electrons can have the values n=2, l=1, and s=+½ in the configuration 1s2, 2s2, 2p3?

NTS 2015 DUHS and JSMU
Chemistry
Atomic Structure
Elimination Tool:

A) 1

B) 3

C) 5

D) 7

36 / 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

37 / 100

Category: Chemistry

Q.93 Which element has electronic configuration of [Ar]4s1, 3d5

A. Cu

B. Zn

C. Cr

D. V

38 / 100

Category: Chemistry Ch 13 Class 12

An ester is prepared by the reaction of:

NTS 2011
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

A) Two alcohols

B) Carboxylic acid and alcohol

C) Ketone and alcohol

D) Aldehyde and alcohol

39 / 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

40 / 100

Category: Chemistry Ch 9 Class 12

How many chain isomers are possible for the alkane C6H14?

NTS 2016 SMBBMC
Chemistry
Hydrocarbons
Elimination Tool:

A) six

B) five

C) four

D) nine

41 / 100

Category: Chemistry Ch 15 Class 12

Genetic mutations occur in:

NUMS 2016
Chemistry
Chemistry of Life
Elimination Tool:

A) RNA

B) Protein

C) DNA

D) All of the above

42 / 100

Category: Chemistry Ch 2 Class 12

Which of the following is a major mineral of Lithium?

Spodumene

Rock salt c

Carnallite

Alunite

43 / 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

44 / 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

45 / 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

46 / 100

Category: Chemistry

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

NUMS Mock 4
Chemistry
Electrochemistry

A) Oxidation reaction

B) Reduction reaction

C) Auto-oxidation and reduction reaction

D) Substitution reaction

47 / 100

Category: Chemistry Ch 5 Class 12

Percentage of Chlorine present In bleaching powder Is:

5-10

20-25

35- 40

90

48 / 100

Category: Chemistry

Which one of the following molecules has sp3 hybridization?

NUMS Mock 2
Chemistry
Chemical Bonding

A) CH4

B) C2H4

C) CO2

D) C2H2

49 / 100

Category: Chemistry Ch 12 Class 12

Ketones undergo reaction with which compound in the presence of acid to form oximes

Hydroxy methane

) Hydroxyl amine

Phenyl hydrazine

) None

50 / 100

Category: Chemistry

Q.1 Suppression of ionization means

A. Decreasing Ionization

B. Increasing ionization

C. Maintaining ionization

D. None of these

51 / 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

52 / 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

53 / 100

Category: Chemistry Ch 11 Class 12

Which of the following is not a physical property of ethers?

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

A) They are usually volatile liquids

B) Show weak hydrogen bonding

C) They are highly flammable with low boiling points

D) It is poisonous and is used as a disinfectant in hospitals

54 / 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

55 / 100

Category: Chemistry

Q.123 Protein present in hides of animals is precipitated by

A. Tannic acid

B. Stearic acid

C. Oxalic acid

D. Acetic acid

56 / 100

Category: Chemistry

A single Chloride free radical can destroy ozone molecules up to:

NUMS Mock 1
Chemistry
Enviormental Chemistry

A) 100,000

B) 10,000

C) 100,0000

D) 1000

57 / 100

Category: Chemistry Ch 3 Class 12

Which of the following forms a layer of oxide on its exposure to moisture?

Aluminum

Iron

Steel

Copper

58 / 100

Category: Chemistry

From the following, only one amino acid has two identical groups attached to its central atom. Which amino acid out of the following matches the description given above.

NUMS Mock 3
Chemistry
Chemistry of Life

A) Valine

B) Alanine

C) Glycine

D) Cysteine

59 / 100

Category: Chemistry Ch 8 Class 11

1.8 x 10 -5 is the dissociation constant of:

NTS 2016 SMBBMC
Chemistry
Chemical Equilibrium
Elimination Tool:

A) Formic acid

B) Acetic acid

C) Chloroacetic acid

D) Hydrocyanic acid

60 / 100

Category: Chemistry Ch 4 Class 12

The formula of Chile Peter salt is

NaCI

NaNO3

NaOH

NaNO4

61 / 100

Category: Chemistry Ch 8 Class 11

If the value of ‘Kc’ is very large then, it shows that ______ completed.

NUMS 2018
Chemistry
Chemical Equilibrium
Elimination Tool:

A) Forward reaction

B) Reverse reaction

C) Equilibrium is maintained

D) Kcis moderate

62 / 100

Category: Chemistry Ch 7 Class 12

(HCHO)nH20 is the chemical formula for?

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

A) Formic acid

B) Paraformaldehyde

C) á – methyl propionaldehyde

D) Propionic acid

63 / 100

Category: Chemistry Ch 8 Class 11

a

b

c

d

64 / 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

65 / 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

66 / 100

Category: Chemistry Ch 1 Class 11

A compound has an empirical (simple) formula, C2H2O. If the experimental molecular weight is found to be in the range 160-170, the molecular formula of this compound is:

(Atomic weight: C = 12.1, H = 1.008, O = 16).

PMC Practice 21
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

A) C3H6O3

B) C4H4O2

C) C8H8O4

D) C6H6O3

67 / 100

Category: Chemistry

Q.162 Ifthe concentration of reactants in a chemical reaction is Unity the rate is called

A. Unit rate constant

C. Relative rate constant

B. Specific rate constant

D. Average rate constant

68 / 100

Category: Chemistry Ch 13 Class 12

Carboxylic acids can be reduced to corresponding alcohols. Which of the following reagent can be used for this purpose?

UHS 2019
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

A) KMnO4

B) LiAlH4

C) K2Cr2O4

D) H2SO4

69 / 100

Category: Chemistry Ch 12 Class 12

Cyanohydrins can be synthesized from ketones through:

PreMedPK MDCAT Mock 4
Chemistry
Aldehydes and Ketones
Elimination Tool:

A) Nucleophilic addition reaction

B) Unimolecular Nucleophilic substitution reaction

C) Electrophilic substitution reaction

D) Bimolecular Nucleophilic substitution reaction

70 / 100

Category: Chemistry Ch 12 Class 12

Ketones and aldehydes are reduced in the presence of catalyst:

Pd

Al203

R-Mg-X

SOCl2

71 / 100

Category: Chemistry Ch 11 Class 11

In a zero-order reaction, the rate is independent of:

NTS 2019
Chemistry
Reaction Kinetics
Elimination Tool:

A) The temperature of the reaction

B) The concentration of reactants.

C) Concentration of products

D) Catalyst used

72 / 100

Category: Chemistry Ch 14 Class 12

How many types of polymerization reactions are there?

PMC 2021 Tested
Chemistry
Macromolecules
Elimination Tool:

A) 4

B) 2

C) 6

D) 3

73 / 100

Category: Chemistry Ch 10 Class 11

Two half cells of a galvanic cell are connected with a salt bridge, the electrons flow from:

Anode to cathode through external circuit

Cathode to anode through external circuit

Anode to cathode through salt bridge

Cathode to anode through salt bridge

74 / 100

Category: Chemistry Ch 1 Class 12

Covalent hydrides are:

Gaseous

Solid

Liquids

Both a & c

75 / 100

Category: Chemistry Ch 5 Class 11

“In an atom no two electrons can have the some set of four Quantum numbers” is stated by:

NTS 2013
Chemistry
Atomic Structure
Elimination Tool:

A) Heisenberg’s uncertainty principle

B) Aufbau Principle

C) Pauli's Exclusion principle

D) Hund's Rule

76 / 100

Category: Chemistry Ch 15 Class 12

Percentage of nitrogen in urea is:

92

68

46

48

77 / 100

Category: Chemistry Ch 8 Class 11

At equilibrium, which of the following reactions is not affected by pressure?

NUMS 2016
Chemistry
Chemical Equilibrium
Elimination Tool:

A) ½ N2(g) + ½ O2 (g)⇌ NO(g)

B) PCl5(g) ⇌ PCl3(g) + Cl2(g)

C) 2NO2 (g) ⇌ N2O4(g)

D) SO2Cl2(g) ⇌ SO2(g) + Cl2(g)

78 / 100

Category: Chemistry Ch 10 Class 12

Grignard reagent when added to dry ice gives:

Primary Alcohol

Alkyl Halide

Tertiary Alcohol

Carboxylic Acid

79 / 100

Category: Chemistry Ch 14 Class 12

) Nylon 6 —6 Is obtained by heating adipic acid with:

Hexethylene Diamine

Hexmethylene Diamine

hexmethylene amine

hexdimethylene diamine

80 / 100

Category: Chemistry Ch 3 Class 11

Comparative rates of diffusion of He and SO2 will be _______.

NTS 2012
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) 8

B) 2

C) 4

D) 16

81 / 100

Category: Chemistry Ch 12 Class 12

In which of the following reaction alkyl ketones are converted Into carboxylic acid with one carbon atom less than the parent compound?

Haloform

Cannizzaro

Aldol

None

82 / 100

Category: Chemistry Ch 8 Class 11

A solution has pH of 10. What is the value of [OH-]?

10^4

10^-4

10^6

10^-6

83 / 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

84 / 100

Category: Chemistry

The following changes to the system at equilibrium have no effect on Kc except:

NUMS Mock 4
Chemistry
Chemical Equilibrium

A) Increasing reactant concentrations

B) Equal number of reactant and product gas molecules

C) Increasing temperature

D) Using a catalyst

85 / 100

Category: Chemistry Ch 8 Class 11

The change in concentration of reactant or product per unit time is called:

NTS 2016 DUHS & JSMU
Chemistry
Chemical Equilibrium
Elimination Tool:

A) Rate constant

B) Rate of reaction

C) Rate equation

D) Rate law

86 / 100

Category: Chemistry Ch 6 Class 11

In period, moving from left to right

Electro negativity decreases

ElectronegativIty Increases

Electro negativity remains same

None of these

87 / 100

Category: Chemistry

Q.145 Activator of phosphatase enzyme

A. Mn2+

B. Mg2-

C. Zn

D. None of these

88 / 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

89 / 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

90 / 100

Category: Chemistry Ch 1 Class 11

To find the number of molecules in a given compound which of the following is employed?

Chromatography

Le-Chatelier's principle

Kc

None of thes

91 / 100

Category: Chemistry Ch 9 Class 12

The hybridization of benzene is:

sp3

sp2

sp

None of these

92 / 100

Category: Chemistry Ch 3 Class 11

Liquid crystals are used for:

Making LCD

Making thermometers

Optical Imaging

All of these

93 / 100

Category: Chemistry Ch 12 Class 12

Butanone on oxidation with K2Cr2O7 / H2SO4 forms:

NUMS 2020
Chemistry
Aldehydes and Ketones
Elimination Tool:

A) Acetic acid

B) Acetic acid & Ethane

C) Methane & Propanoic acid

D) Propanoic acid & Methanoic acid

94 / 100

Category: Chemistry

Q.75 Metallic character depends on.

A. Electron affinity

B. Ionization energy

C. Electronegativity

D. All of these

95 / 100

Category: Chemistry Ch 11 Class 12

Treatment of ethene with cold sulphuric acid, followed by reaction with boiling water, yields:

UHS 2019
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

A) Ethane

B) Ethanal

C) Ethanol

D) Ethyne

96 / 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

97 / 100

Category: Chemistry

What type of chemical reaction is this?
CH3CHO + NH3 -> CH3CH(OH)NH2

NUMS Mock 3
Chemistry
Aldehydes and Ketones

A) Addition – elimination

B) Electrophilic addition

C) Free radical addition

D) Nucleophilic addition

98 / 100

Category: Chemistry Ch 4 Class 12

The shape of [Co(NH3)6]3+ complex is:

UHS 2018
Chemistry
d and f Block Elements
Elimination Tool:

A) Linear

B) Square planar

C) Tetrahedral

D) Octahedral

99 / 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

100 / 100

Category: Chemistry Ch 11 Class 11

If the reaction, P + Q → R + S, is described as being of zero-order with respect to P, it means that:

NTS 2012
Chemistry
Reaction Kinetics
Elimination Tool:

A) P is a catalyst in this reaction

B) No P molecules possess sufficient energy to react

C) The concentration of P does not change during the reaction

D) The rate of reaction is independent of the concentration of P

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