Chemistry Practice Tests 2

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Chemistry Practice Test 2

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1 / 100

Category: Chemistry Ch 2 Class 11

The mechanism of reaction can be understood by

PMC Practice 6
Chemistry
Experimental Techniques in Chemistry
Elimination Tool:

A) Experimental details

B) Balanced chemical equation

C) Molar Ratio

D) All of these

2 / 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

3 / 100

Category: Chemistry

Q.115 Alcohols can be oxidized to aldehyde and ketone by warming with acidified potassium dichromate. Which among of the following alcohols resists to this change

A. (CH3)2 CH CH2OH

B. CH3 CH2 CH(CH3) OH

C. (CH3)3 COH

D. C6H3 CH2 OH

4 / 100

Category: Chemistry Ch 8 Class 11

Le-Chatelier Principle is about

PMC Sample 3
Chemistry
Chemical Equilibrium
Elimination Tool:

A) Reaction Mixture

B) Reactants

C) Equilibrium Mixture

D) Products

5 / 100

Category: Chemistry Ch 9 Class 11

The number of moles of solute dissolved per dm) of the solution is called

Molarity

Molality

Motality

Mole fraction

6 / 100

Category: Chemistry Ch 14 Class 12

Fe’ 2 + is a cofactor of:

Chrome oxidase

Glucose 6-phosphatase

Carbonic anhydrase

Both a and b

7 / 100

Category: Chemistry Ch 1 Class 11

Which of the following represents Empirical Formula of Glucose?

CH2O

CHO

C2H0

CHO2

8 / 100

Category: Chemistry Ch 11 Class 12

Alkyl groups In ethers are connected by?

An oxygen atom

A carbon atom

A nitrogen atom

A benzene ring

9 / 100

Category: Chemistry Ch 11 Class 11

Activated complex is formed due to

PMC Sample 3
Chemistry
Reaction Kinetics
Elimination Tool:

A) Pressure

B) Temperature

C) Effective collision

D) Ineffective collision

10 / 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

11 / 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

12 / 100

Category: Chemistry Ch 1 Class 12

7′ Period of the Periodic Table is:

Complete

Incomplete

Called Long Period

None of these

13 / 100

Category: Chemistry Ch 14 Class 12

Polyester is used in:

PMC 2021 Tested
Chemistry
Macromolecules
Elimination Tool:

A) Cosmetic industry

B) Fabric industry

C) None of these

D) Food industry

14 / 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

15 / 100

Category: Chemistry Ch 15 Class 12

In the atmosphere, CO2is about?

NUMS 2018
Chemistry
Environmental Chemistry
Elimination Tool:

A) 0.01 %

B) 0.03 %

C) 0.05 %

D) 0.09 %

16 / 100

Category: Chemistry Ch 2 Class 12

Group 1A and 11A are known as: ) s block elements d) P block elements

Alkali

Alkaline earth

) s block elements

P block elements

17 / 100

Category: Chemistry Ch 10 Class 11

Current in electrolysis is carried through:

PMC Sample 3
Chemistry
Electrochemistry
Elimination Tool:

A) Free electrons

B) Positive Ions

C) Negative Ions

D) Both B and C

18 / 100

Category: Chemistry Ch 1 Class 12

Element that is not found in Free State is?

0

H

C

None of these

19 / 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 2
Chemistry
Chemical Equilibrium
Elimination Tool:

A) Irreversible

B) Unidirectional

C) Multidirectional

D) Reversible

20 / 100

Category: Chemistry

Q.116 Distillation of calcium acetate and calcium formate produces?

A. Formaldehyde

B. Acetaldehyde

C. Acetone

D. None of these

21 / 100

Category: Chemistry Ch 1 Class 11

Molecular ions are produced by passing a high energy electron beam or an x-ray beam through _______.

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

A) Atoms

B) Molecules

C) Gas

D) Solid

22 / 100

Category: Chemistry Ch 3 Class 12

Borax bead test is used to separate:

) Metallic cations

Non-metallic cations

Metallic anions

Non-metallic anions

23 / 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

24 / 100

Category: Chemistry

Q.124 The organic acid with the highest pKa value is

A. Chloroethanoic acid

B. Dichloroethanoic acid

C. Trichloroethnoic acid

D. Nitroethanoic acid

25 / 100

Category: Chemistry Ch 9 Class 11

If 18.0 g of glucose is dissolved in 1 kg of water, boiling point of this solution should be:

UHS 2013
Chemistry
Solution and Colloids
Elimination Tool:

A) 100.52 °C

B) 100.00 °C

C) 100.052 °C

D) Less than 100 °C

26 / 100

Category: Chemistry Ch 5 Class 12

Which of the following can be bleached using Bleaching power?

Cotton

Wool

Silk

All of these

27 / 100

Category: Chemistry Ch 13 Class 12

Which of the following is the strongest acid?

PMC 2020
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

A) Propanoic acid

B) Fluoroethanoic acid

C) Trichloroethanoic acid

D) Nitroethanoic acid

28 / 100

Category: Chemistry Ch 1 Class 12

Which of the following catalysts is used in the decomposition of laughing gas N2O at 1000 K?

2N2O 2N2 + O2

NTS 2016 SMBBMC
Chemistry
Periodicity in Elements
Elimination Tool:

A) Glycine

B) V2O5

C) Fe

D) Traces of Cl2

29 / 100

Category: Chemistry Ch 5 Class 12

Sulfur with HI acts as a:

Strong oxidizing agent

Strong reducing agent

Weak oxidizing agent

Weak reducing agent

30 / 100

Category: Chemistry Ch 11 Class 11

If energy of the activated complex is close to energy of reactants, it means that the reaction is:

NUMS 2019 Reconduct
Chemistry
Reaction Kinetics
Elimination Tool:

A) Fast

B) Moderate

C) Slow

D) Very slow

31 / 100

Category: Chemistry Ch 14 Class 12

Starch is a polymer of: N

a-d glucos

b-d glucose

Amino acids

Amylose

32 / 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

33 / 100

Category: Chemistry Ch 6 Class 12

Which of following transition complex will have most stable square planar structure?

(MnCI4)2-

PCI5

Cu(NI13)4)2-

(Co(N143)6)2-

34 / 100

Category: Chemistry Ch 10 Class 12

Ethyl iodide and n-propyl iodide are allowed to undergo Wurtz reaction. The alkane which will not be obtained in this reaction is:

NUMS 2016
Chemistry
Alkyl Halides and Amines
Elimination Tool:

A) butane

B) propane

C) pentane

D) hexane

35 / 100

Category: Chemistry Ch 6 Class 11

How many bonds are there in CO?

1

2

3

4

36 / 100

Category: Chemistry Ch 7 Class 12

The coal used for domestic purposes is: –

Lignite

Anthracite

Bituminous

Sub bituminous

37 / 100

Category: Chemistry Ch 13 Class 12

Which of the following reagent is required for preparation of acyl chloride (CH3COCl) from ethanoic aicd?

UHS 2019
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

A) PCl5

B) POCl3

C) CH3Cl

D) HCl

38 / 100

Category: Chemistry

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

Amylase

Protease

Sucrase

None of these

39 / 100

Category: Chemistry

Q.95 250cm3 of a hypothetical gas is cooled from 127°C to –73°C by maintaining the pressure constant. The new volume of the gas at low temperature is

A. 0.25dm3

B. 125 cm3

C. 1.25dm3

D. 250cm3

40 / 100

Category: Chemistry Ch 3 Class 12

The oxidation states of Boron are:

+1,+2 and +3

-1, -2 and -3

+1 and -1

+3 and -3

41 / 100

Category: Chemistry Ch 11 Class 12

Rectified spirits have a percentage of alcohol.

NUMS 2018
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

A) 12 %

B) 24 %

C) 95 %

D) 100 %

42 / 100

Category: Chemistry Ch 12 Class 12

H —CHO is:

Formaldehyde

Acetaldehyde

Ketone

Ester

43 / 100

Category: Chemistry Ch 6 Class 11

Lithium and beryllium are unique in such a way that they have higher charge densities which produce strong polarizing effects due to:

NTS 2018
Chemistry
Chemical Bonding
Elimination Tool:

A) Non-metal

B) Solubility

C) Small Size

D) Large size

44 / 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

45 / 100

Category: Chemistry Ch 10 Class 12

Alkyl Halides that go through SN1 reactions are

Primary

Secondary

Tertiary

All of these

46 / 100

Category: Chemistry Ch 13 Class 12

Solubility of carboxylic acids ______?

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

A) Decreases with increase of volume

B) Decreases with increase in molecular mass

C) Increases with increase in molecular mass

D) None of these

47 / 100

Category: Chemistry

Maximum number of electrons in a subshell is given by:

NUMS Mock 1
Chemistry
Atomic Structure

A) 2 (2l – 1)

B) 2 (2l + 1)

C) 2(l + 1)

D) 2l + 1

48 / 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

49 / 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

50 / 100

Category: Chemistry

Q.103 Left-handed helix in proteins secondary structure is called as

A. Alpha helix

B. Beta helix

C. Spiral

D. Coucentrate

51 / 100

Category: Chemistry Ch 2 Class 12

Which of the following is unstable?

Li2CO3

MgCO3

c) Both a and b

Both are stable

52 / 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

53 / 100

Category: Chemistry Ch 1 Class 11

Limiting reactant controls the amount of _.

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

A) Reactant

B) Products

C) Both A&B

D) None of these

54 / 100

Category: Chemistry

All of the following react with KMnO4 except

NUMS Mock 2
Chemistry
Hydrocarbons

A) Ethane

B) Ethyne

C) Ethylbenzene

D) Ethene

55 / 100

Category: Chemistry Ch 7 Class 12

Which is not a meta directing group:

NUMS 2017
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

A) -NO2

B) -COOH

C) -NH2

D) -COR

56 / 100

Category: Chemistry

Q.179 The nature of amorphous solid is

A. Isotropic

B. Anisotropic

C. Mesotrophic

D. Neotropic

57 / 100

Category: Chemistry Ch 11 Class 11

The rate of a reaction in general can be increased by all the following factors except:

NUMS 2015
Chemistry
Reaction Kinetics
Elimination Tool:

A) By increasing temperature

B) Using a suitable catalyst

C) By an increase in activation energy

D) By increasing conc. Of reactants

58 / 100

Category: Chemistry Ch 6 Class 11

Which of the following has the highest value of electronegativity?

PMC 2020
Chemistry
s and p Block Elements
Chemical Bonding
Elimination Tool:

A) I

B) Br

C) Cl

D) F

59 / 100

Category: Chemistry Ch 7 Class 11

If a system absorbs heat, the surrounding temperature

Increases

Remains same

Decreases

Decreases then suddenly Increases

60 / 100

Category: Chemistry Ch 1 Class 11

Which of the following has six isotopes?

PMC Practice 4
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

A) Manganese

B) Tin

C) Calcium

D) Carbon

61 / 100

Category: Chemistry

Q.70 To prepare a buffer with pH close to 9, the mixture used would be

A. CH3COOH + CH3COONa

B. NaHCO3 + H2CO3

C. H3PO4 + NaH2PO4

D. NH4OH + NH4Cl

62 / 100

Category: Chemistry Ch 1 Class 11

Which of the following will react with water?

NUMS 2016
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

A) CHCl3

B) Cl3CCHO

C) CHI4

D) ClCH2CH2Cl

63 / 100

Category: Chemistry Ch 3 Class 11

What is the volume in cm3 of 3.01 x 10^23 molecules of O2 gas at S.T.P.?

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

A) 1000 cm3

B) 11000 cm3

C) 1120 cm3

D) 11200 cm3

64 / 100

Category: Chemistry Ch 5 Class 11

d subshell has

3 orbitals

5 orbitals

7 orbitals

12 orbitals

65 / 100

Category: Chemistry Ch 1 Class 12

11) Hydrogen has properties similar to:

Alkali metals

Halogens

Both a and b

None of these

66 / 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)

67 / 100

Category: Chemistry Ch 15 Class 12

The temperature zones In rotary kilns are:

5

4

6

None of these

68 / 100

Category: Chemistry

Which enthalpy change is relevant in the following process

Na(s) -> Na (g) ΔH = +107

NUMS Mock 2
Chemistry
Thermochemistry

A) Enthalpy of atomization

B) Enthalpy of fusion

C) Enthalpy of vaporization

D) Enthalpy of formation

69 / 100

Category: Chemistry Ch 14 Class 12

The polymer formed by the polymerization of vinyl acetate is:

NUMS 2019 Cancelled
Chemistry
Macromolecules
Elimination Tool:

A) Cross linked linear polymer

B) Co polymer

C) Homopolymer

D) Condensation polymer

70 / 100

Category: Chemistry

Alkenes undergo:

NUMS Mock 2
Chemistry
Hydrocarbons

A) Electrophilic Addition

B) Electrophilic substitution

C) Nucleophilic substitution

D) Nucleophilic addition

71 / 100

Category: Chemistry Ch 1 Class 12

NaNO3 on heating gives:

NUMS 2015
Chemistry
Periodicity in Elements
Elimination Tool:

A) O2

B) NO2

C) O2 + NO2

D) NaNO2 + O2

72 / 100

Category: Chemistry

Q.87 O2-2 + 2H2O → 2H2O2, In this reaction O2-2 act as

A. Oxidizing agent

B. Reducing agent

C. Dehydrating agent

D. Drying agent

73 / 100

Category: Chemistry

The spectrum of He is expected to be similar to that of:

NUMS Mock 4
Chemistry
Atomic Structure

A) Hydrogen

B) Sodium

C) Oxygen

D) Li+

74 / 100

Category: Chemistry Ch 15 Class 12

Which one of the following was used as one of the earliest antiseptic and disinfectants?

UHS 2015
Chemistry
Industrial Chemistry
Elimination Tool:

A) Phenol

B) Ether

C) Ethanol

D) Methanol

75 / 100

Category: Chemistry Ch 3 Class 11

According to Charles Law, when temperature is reduced to half the volume will be

Doubled

Half

Quarter

Same as original

76 / 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

77 / 100

Category: Chemistry Ch 9 Class 12

Fuels with higher octane number can be produced by ___________.

PMC Practice 2
Chemistry
Hydrocarbons
Elimination Tool:

A) Cracking

B) Reforming

C) Decomposition

D) Isomerisation

78 / 100

Category: Chemistry Ch 4 Class 12

Both 02 and 03 are Oxidizing agents but 02 is preferred because:

It is relatively unstable than 02

It provides an extra oxygen atom then 02

It provides Nascent Oxygen

All of above

79 / 100

Category: Chemistry

An electron is suited midway between two parallel plates 0.5cm apart. One of the plates is maintained at a potential of 60 volts above the other. The force on the electron is (e=-1.6×10-19)

NUMS Mock 4
Physics
Electrostatics

A) 1.82×10-15 N

B) 3.00×10-16 N

C) 1.92×10-15 N

D) 3.00×10-15 N

80 / 100

Category: Chemistry Ch 4 Class 12

Copper is a typical transition metal. Its atomic number is 29. In which oxidation state does it have a partially filled orbital in d-subshell?

UHS 2019
Chemistry
d and f Block Elements
Elimination Tool:

A) Cu

B) Cu+

C) Cu-

D) Cu2+

81 / 100

Category: Chemistry Ch 14 Class 12

Bakelite is a polymer of formaldehyde and __________.

NUMS 2018
Chemistry
Macromolecules
Elimination Tool:

A) Phenol

B) Ethanol

C) Butanol

D) Methanol

82 / 100

Category: Chemistry Ch 7 Class 12

How many chain isomers can be obtained from the alkane C6H14?

NTS 2016 DUHS & JSMU
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

A) 7

B) 6

C) 5

D) 4

83 / 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

84 / 100

Category: Chemistry Ch 8 Class 12

Which type of isomerism depends on the distribution of carbon atoms on each side of the functional group?

PreMedPK MDCAT Mock 1
Chemistry
Hydrocarbons
Elimination Tool:

A) Structural isomerism

B) Functional isomerism

C) Chain isomerism

D) Metamerism

85 / 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

86 / 100

Category: Chemistry Ch 5 Class 11

Spectrum of which series is in the UV region?

Lyman serie

Balmer series

Paschen series

Pfund series

87 / 100

Category: Chemistry Ch 4 Class 12

H2SO4 is used in industries of?

Paint

Textile

Rubber

Aluminum

88 / 100

Category: Chemistry

A system at equilibrium can be disturbed by:

NUMS Mock 4
Chemistry
Chemical Equilibrium

A) Concentration change

B) Pressure change

C) Temperature

D) All of the above

89 / 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

90 / 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

91 / 100

Category: Chemistry Ch 8 Class 11

Buffer solution of every liquid is

Same

Different

Depends upon pH

None of these

92 / 100

Category: Chemistry Ch 5 Class 12

The halogens are known as:

Salt formers

Rare earth elements

Alkali metals

Noble gases

93 / 100

Category: Chemistry Ch 8 Class 12

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

PreMedPK MDCAT Mock 3
Chemistry
Hydrocarbons
Elimination Tool:

A) CH3- CH3

B) CH2= CH2

C) CH≡ CH

D) CH3- CH2- CH3

94 / 100

Category: Chemistry Ch 6 Class 11

The order of force of repulsion between lone pairs and Bond pairs is?

NTS 2015 SMBBMC
Chemistry
Chemical Bonding
Elimination Tool:

A) Lone pair Bond -pair repulsion > lone pair lone pair repulsion> Bond pair Bond pair repulsion

B) Bond pair -Bond pair repulsion> lone pair lone pair repulsion> lone pair Bond pair repulsion

C) lone pair lone pair repulsion> Bond pair Bond pair repulsion> lone pair Bond pair repulsion

D) lone pair lone pair repulsion> lone pair Bond pair repulsion> Bond pair Bond pair repulsion

95 / 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

96 / 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

97 / 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

98 / 100

Category: Chemistry Ch 2 Class 12

Formula of Epsom salt is:

a

b

c

d

99 / 100

Category: Chemistry Ch 11 Class 11

Half-life of an element is 5 days. If we have 50,000 of its atoms, then how many atoms would be left after 10 days?

15000

25000

50000

None of these

100 / 100

Category: Chemistry Ch 10 Class 11

Definition of electrode potential is?

Tendency of metals to form ions when dissolved in 1M solution of its own solution

Tendency of ions to form atoms when dissolved in 1M solution of its metal

Both a and b

None of these

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