Chemistry Practice Tests 3

Created by Ali Durrani

NET Practice

Chemistry Practice Test 3

This is the Free Access to Limited MCQs. Enroll to PLS Boost Premium Bundle to Get More MCQs HERE

1 / 100

Category: Chemistry Ch 13 Class 12

) Acetic acid is used in making

Leather shoes

Rubber shoes

Plastic shoe

None of thes

2 / 100

Category: Chemistry Ch 11 Class 12

The aromatic compound having the functional group “OH” attached to It Is?

Carbolic acid

Phenol

Alcohol

None

3 / 100

Category: Chemistry Ch 6 Class 11

Paramagnetism is due to:

Unpaired electron

Complete valence shell

Paired electron

Ionization

4 / 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

5 / 100

Category: Chemistry Ch 6 Class 11

In water molecules, oxygen atom is hybridized as

sp2

sp3

sp4

sp3d2

6 / 100

Category: Chemistry Ch 11 Class 11

A catalyst is a substance which:

NUMS 2017
Chemistry
Reaction Kinetics
Elimination Tool:

A) Stops the reaction

B) Decreases the rate of reaction

C) Alters the rate of reaction

D) Increases the rate of reaction

7 / 100

Category: Chemistry Ch 6 Class 11

The hybridization of atomic orbitals of N2+, NO3-, and NH4+are, respectively:

NTS 2015 DUHS and JSMU
Chemistry
Chemical Bonding
Elimination Tool:

A) Sp, sp2, sp3

B) Sp, sp3, sp2

C) Sp2, sp, sp3

D) Sp2, sp3, sp

8 / 100

Category: Chemistry Ch 15 Class 12

The pH of acid rain is

UHS 2014
Chemistry
Environmental Chemistry
Elimination Tool:

A) 7

B) Between 5 and 7

C) Below 5

D) Between 7 and 14

9 / 100

Category: Chemistry Ch 10 Class 11

Only those substances are written in Ion Electron Method:

PMC Sample 1
Chemistry
Electrochemistry
Elimination Tool:

A) Which are oxidizing

B) Which are reducing

C) Which are not taking part in reaction

D) Which will take part in reaction

10 / 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

11 / 100

Category: Chemistry

Q.121 Ka (Cu(CN)4) which one is correct

A. Potassium tetra cyano recuperate

B. Coordination numbers 2

C The ligand is positively charged

D.Central atom is present in the avionic sphere

12 / 100

Category: Chemistry Ch 6 Class 11

Second Ionization energy of M atom

Higher than first ionization energy

Lower than first ionization energy

Very low

None of these

13 / 100

Category: Chemistry Ch 8 Class 12

Sp hybridization is found In which of the following?

Ethane

Ethene

Ethyne

None

14 / 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

15 / 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

16 / 100

Category: Chemistry

Q.34 Which of these have a positive value of enthalpy?

A. Combustion

B. Neutralization

C. Atomization

D. All of these

17 / 100

Category: Chemistry Ch 15 Class 12

Which one of the following is an example of a condensation polymer?

UHS 2014
Chemistry
Industrial Chemistry
Elimination Tool:

A) Polyvinyl Chloride

B) Polystyrene

C) Polyethene

D) Polyamide

18 / 100

Category: Chemistry Ch 6 Class 12

ransition elements are colored because of:

d-d transition

d-p transition

p-p transition

s-d transition

19 / 100

Category: Chemistry

Q.157 Shifting the position of equilibrium can be used to Increase

A. Temperature

B. Pressure

C. Yield of reaction

D. All of these

20 / 100

Category: Chemistry

Q.171 Which type of carboxylic acid is produced from the hydrolysis of nitriles?

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

21 / 100

Category: Chemistry Ch 15 Class 12

Identify the pair of rnicronutrients:

B, I

N, Cu

C, CI

Zn, H

22 / 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

23 / 100

Category: Chemistry Ch 7 Class 11

The net heat change in a chemical reaction is the same whether it is brought about in two or more different ways in one or several steps. This is known as:

NTS 2019
Chemistry
Thermochemistry
Elimination Tool:

A) Henry's law

B) Hess's law.

C) Joule's principle

D) Dalton's law

24 / 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

25 / 100

Category: Chemistry Ch 11 Class 11

The rate of reaction is equal to the specific rate constant, when:

Concentration of reactants collectively is unity

Concentration of each of the reactants is unity

Either a or b

None of these

26 / 100

Category: Chemistry Ch 9 Class 12

How many Dewar Structure of Benzene are present?

2

3

4

Infinite

27 / 100

Category: Chemistry Ch 10 Class 12

The order of reactivities of the following alkyl halides for an SN2 reaction is:

NUMS 2016
Chemistry
Alkyl Halides and Amines
Elimination Tool:

A) RF > RCl > RBr > RI

B) RF > RBR > RCl > RI

C) RCl > RBr > RF > RI

D) RI > RBr > RCl > RF

28 / 100

Category: Chemistry

Q.4 Melting and boiling point of transition elements are higher due to

A. Higher binding energies

B Strong metallic bonding

C. Hardness

D. All of these

29 / 100

Category: Chemistry Ch 2 Class 11

Change in Pressure will only affect the substances which are in:

PMC Practice 4
Chemistry
Experimental Techniques in Chemistry
Elimination Tool:

A) Liquid state

B) Solid State

C) Plasma state

D) Gaseous State

30 / 100

Category: Chemistry Ch 4 Class 11

Which type of movement is shown by the atoms of the solid?

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

A) Translational motion

B) Vibrational motion

C) Rotational motion

D) Linear motion

31 / 100

Category: Chemistry Ch 12 Class 12

Methyl ketones can be characterized by performing:

NUMS 2018
Chemistry
Aldehydes and Ketones
Elimination Tool:

A) Iodoform test

B) Schiff’s test

C) Benedict’s reagent test

D) Tollen’s test

32 / 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.

33 / 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

34 / 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

35 / 100

Category: Chemistry

Q.20 The order of reaction for which hall-life is inversely proportional to the concentration of reaction is

A. Second Order

B. Zero Order

C. First Order

D. Third Order

36 / 100

Category: Chemistry Ch 7 Class 12

Which one of them is used as an automobile antifreeze

PMC Sample 1
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

A) Ethanol

B) ethene

C) ethylene glycol

D) propene

37 / 100

Category: Chemistry Ch 14 Class 12

Which of the following is an addition polymer?

NUMS 2019 Reconduct
Chemistry
Macromolecules
Elimination Tool:

A) Polyester

B) Epoxy resins

C) Acrylic resins

D) Polyamides

38 / 100

Category: Chemistry Ch 8 Class 12

Catalytic hydrogenation of alkenes exhibits:

PreMedPK MDCAT Mock 4
Chemistry
Hydrocarbons
Elimination Tool:

A) Substitution reaction

B) Elimination reaction

C) Addition reaction

D) Condensation reaction

39 / 100

Category: Chemistry

For a sub shell I = 2 and m = -2, -1, 0 , +1, +2, it implies that it has ____ space orientation.

NUMS Mock 4
Chemistry
Atomic Structure

A) One

B) Two

C) Three

D) Five

40 / 100

Category: Chemistry Ch 16 Class 12

Earth’s crust Is Included In which sphere?

Lithosphere

Hydrosphere

Atmosphere

Aerosphere

41 / 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

42 / 100

Category: Chemistry

The formula which shows the simplest whole number ratio for the atoms of different elements in a compound is:

NUMS Mock 1
Chemistry
Stoichiometry

A) Ionic formula

B) Structural formula

C) Empirical formula

D) Molecular formula

43 / 100

Category: Chemistry Ch 1 Class 12

According to which phenomenon, “the properties of elements are the periodic function of their atomic number.”

NTS 2012
Chemistry
Periodicity in Elements
Elimination Tool:

A) Mendeleev's periodic law

C) Doberenier's triads

D) Lothar Meyer’s classification

E) Modern periodic law

44 / 100

Category: Chemistry

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

Mercury

None of these

Ethylene glycol

Acetone pond

45 / 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

46 / 100

Category: Chemistry Ch 15 Class 12

Which of the following is secondary pollutant?

NUMS 2019 Reconduct
Chemistry
Environmental Chemistry
Elimination Tool:

A) CO

B) SO2

C) PAN

D) NO2

47 / 100

Category: Chemistry

Who discovered positive rays (also called protons) and when?

NUMS Mock 4
Atomic Structure

A) Chadwick,1895

B) Goldstein,1886

C) Rutherford,1885

D) J.Perrin,1885

48 / 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

49 / 100

Category: Chemistry Ch 3 Class 11

According to the general gas equation, density of an ideal gas depends upon:

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

A) Pressure

B) Temperature

C) Molar Mass

D) All of these

50 / 100

Category: Chemistry Ch 2 Class 11

The chemical analysis of a compound having molecular mass 188 gives, C=12.8%, H=2.1% and Br=85.1%. Its molecular formula is:

NTS 2014
Chemistry
Stoichiometry
Elimination Tool:

A) CH2Br

B) C2H4Br2

C) C2H4Br

D) CH2(Br)2

51 / 100

Category: Chemistry Ch 1 Class 12

Arrange the following according to increasing ionization energy: Li, Be, Na, Mg

NUMS 2019 Cancelled
Chemistry
Periodicity in Elements
Elimination Tool:

A) Li < Be < Na < Mg

B) Be < Li < Na < Mg

C) Mg < Na < Li < Br

D) Na < Li < Mg < Be

52 / 100

Category: Chemistry Ch 5 Class 11

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

a

b

c

d

53 / 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

54 / 100

Category: Chemistry Ch 11 Class 12

Melting point of methyl alcohol is?

-97.6 'C

-37.6 'C

-64.7'C

-94.6'C

55 / 100

Category: Chemistry Ch 12 Class 12

IUPAC name of propionaldehyde is:

Methanal

Acetaldehyde

Propanal

Butanal

56 / 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

57 / 100

Category: Chemistry Ch 12 Class 12

What one is the correct geometry of acetal?

PreMedPK MDCAT Mock 3
Aldehydes and Ketones
Elimination Tool:

A) Trigonal

B) Linear

C) Tetrahedral

D) Square planer

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 10 Class 11

The breakdown of a substance with current is:

NUMS 2020
Chemistry
Electrochemistry
Elimination Tool:

A) Thermolysis

B) Catalysis

C) Electrolysis

D) Photolysis

60 / 100

Category: Chemistry Ch 12 Class 12

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

NUMS 2016
Chemistry
Aldehydes and Ketones
Elimination Tool:

A) LiAlH4

B) Zn(Hg)-HCl

C) NaBH4

D) CH3MgI

61 / 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

62 / 100

Category: Chemistry Ch 13 Class 12

Chemical formula of MaIonic Acid is?

C3H4O4

C4H4O4

C6H10O4

C5H10O4

63 / 100

Category: Chemistry Ch 9 Class 12

Hydrocarbons which burn with a smoky flame are called:

NUMS 2015
Chemistry
Hydrocarbons
Elimination Tool:

A) Aliphatic

B) Aromatic

C) Alicyclic

D) None of these

64 / 100

Category: Chemistry Ch 4 Class 11

Molecular substances differ from ionic substances in:

Low boiling points

Less electrical conductance

low melting points

All of these

65 / 100

Category: Chemistry Ch 10 Class 11

During oxidation process, oxidation number of an element:

PMC 2020
Chemistry
Electrochemistry
Elimination Tool:

A) Decreases

B) Increases

C) Remains constant

D) Both decreases and increases

66 / 100

Category: Chemistry Ch 5 Class 11

Spectrum of which series is in the visible region?

Lyman series

Balmer series

Paschen series

Pfund series

67 / 100

Category: Chemistry Ch 13 Class 12

An ester is prepared by:

NUMS 2014
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

A) Two alcohols

B) Carboxylic acid and alcohol

C) Ketone and alcoho

D) Aldehyde and alcohol

68 / 100

Category: Chemistry Ch 15 Class 12

The suspected liver carcinogen which also has negative reproduction and developmental effect on humans is:

UHS 2011
Chemistry
Environmental Chemistry
Elimination Tool:

A) Iodoform

B) Bromoform

C) Tropoform

D) Chloroform

69 / 100

Category: Chemistry Ch 5 Class 11

A 4s orbital has:

NUMS 2014
Chemistry
Atomic Structure
Elimination Tool:

A) One node

B) Two nodes

C) three nodes

D) O nodes

70 / 100

Category: Chemistry Ch 6 Class 11

Bond energy between nitrogen atoms in N2 molecule is:

NTS 2015 DUHS and JSMU
Chemistry
Chemical Bonding
Elimination Tool:

B) 820 kJ mol-1

C) 498 kJ mol-1

D) 347 kJ mol-1

E) 946 kJ mol-1

71 / 100

Category: Chemistry Ch 3 Class 11

A graph between volume and temperature gives a straight line which cuts the temperature axis at:

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

A) 0 C

B) 273 C

C) 546 C

D) -273 C

72 / 100

Category: Chemistry Ch 11 Class 12

Which of following is an example of electrophilic attack on alcohols?

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

A) C2H5OH + CH3COOH → CH3COOC2H5 + H2O

B) 2C2H5OH+2Na→ 2CH5ONa+H2

C) C2H5OH + HCl → C2H5Cl + H2O

D) Both A and B

73 / 100

Category: Chemistry Ch 1 Class 11

If 9.8 g of sulfuric acid is dissolved in an excess quantity of water, it will yield _______ moles of hydrogen ion ( H+) and _______ mole of sulphate ions (SO4 -2).

PMC Practice 22
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

A) 0.1, 0.2

B) 0.1, 0.3

C) 0.2, 0.4

D) 0.2, 0.1

74 / 100

Category: Chemistry

Which one of the following is used as an anesthetic?

Acetone

Halothane

Methyl alcohol

Ethyl alcohol

75 / 100

Category: Chemistry Ch 9 Class 11

As the number of solute particles increases, the freezing point of the solution:

UHS 2012
Chemistry
Solution and Colloids
Elimination Tool:

A) Remains the same

B) Increases

C) First increases, then decreases

D) Decreases

76 / 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

77 / 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?

NTS 2013
Chemistry
Hydrocarbons
Elimination Tool:

A) Structural isomerism

B) Functional isomerism

C) Chain isomerism

D) Metamerism

78 / 100

Category: Chemistry Ch 13 Class 12

Lysine is a
amino acid

Acidic

Basic

Neutral

Amphoteric

79 / 100

Category: Chemistry

The presence of several fine lines in a line spectrum shows the presence of:

NUMS Mock 3
Chemistry
Atomic Structure

A) Shells

B) Energy levels

C) Sub shells

D) All of these options are correct

80 / 100

Category: Chemistry

Q.18 The increase in size of an anion is due to increase n repulsion of

A. electron-proton

B. electron-electron

C. electron-nucleus

D. proton-nucleus

81 / 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

82 / 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

83 / 100

Category: Chemistry

Q.69 Carbon dioxide is an Example of

A. Ionic Solid

B. Metallic Solid

C. Molecular Solid

D. Covalent Solid

84 / 100

Category: Chemistry Ch 4 Class 11

Amorphous solids turns into glass like state from rubber like state, this is called

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

A) transition

B) crack transition

C) glass transition

D) all of these

85 / 100

Category: Chemistry Ch 3 Class 11

At the transition temperature of a crystalline solid, the substance exists:

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

A) In most stable geometric form

B) Solid and liquid state

C) In dynamic equilibrium between two crystalline forms

D) In one solid geometrical form only

86 / 100

Category: Chemistry

Q.85 Along period of periodic table, shielding effect

A. Increases

B. Decreases

C. Remains constant

D. First increases then decrease

87 / 100

Category: Chemistry

Role of a catalyst in a chemical reaction is to:

NUMS Mock 3
Chemistry
Reaction Kinetics

A) Decreases yield of a reaction

B) Decreases rate of a reaction

C) Increase yield of product

D) Increase rate of a reaction

88 / 100

Category: Chemistry Ch 11 Class 11

Reaction of Sodium with water is an example of

PMC Sample 3
Chemistry
Reaction Kinetics
Elimination Tool:

A) Reversible reaction

B) Endothermic

C) Irreversible

D) Slow

89 / 100

Category: Chemistry Ch 6 Class 12

Acidified K2Cr2O7 is also called:

Ceramic acid

Chromic Acid

Dichromate

None of these

90 / 100

Category: Chemistry

Q.17 Legumine & collagen protein are present in which type of body tissues:

A. Cardiac

B. Epithelial

C. Connective

D. Epidermis

91 / 100

Category: Chemistry Ch 13 Class 12

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

PMC Practice 3
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

92 / 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

93 / 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.

94 / 100

Category: Chemistry Ch 10 Class 12

Alcbhols react with aqueous acid to produce alkyl halides in presence of

ZnCl2

SO2

Pyridine

KOH

95 / 100

Category: Chemistry Ch 6 Class 11

Which of the following ions will show maximum hydration?

NTS 2016 SMBBMC
Chemistry
Chemical Bonding
Elimination Tool:

A) Mg+2

B) Na+1

C) Al+3

D) Ca+2

96 / 100

Category: Chemistry Ch 9 Class 12

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

PMC Practice 2
Chemistry
Hydrocarbons
Elimination Tool:

A) Red

B) White

C) Brown

D) Pinkish

97 / 100

Category: Chemistry Ch 2 Class 12

The ionization of Hydrogen atom gives:

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

A) hydride ion

B) hydronium ion

C) proton

D) hydroxyl ion

98 / 100

Category: Chemistry

Q.122 An orbital can accommodate at the most______________electrons

A.2

B.14

C. 1

D. 6

99 / 100

Category: Chemistry Ch 10 Class 11

A solution of Sodium Sulphate was electrolyzed using platinum electrode, the products at the anode and cathode respectively are:

NUMS 2017
Chemistry
Electrochemistry
Elimination Tool:

A) O2, H2

B) O2,Na

C) O2, SO

D) O2, S2O4-2

100 / 100

Category: Chemistry Ch 11 Class 11

75% of a first order reaction is completed in 36 minutes. What is the half life of the reaction?

NUMS 2017
Chemistry
Reaction Kinetics
Elimination Tool:

A) 27 min

B) 24 min

C) 18 min

D) 42 min

Your score is

The average score is 56%

0%

PLS Academy – LearnoSpot

PLS Boost Bundle