Quiz: The Solid State (15 Questions)

1. Which type of solid has high melting point and conducts electricity in molten state?

Molecular solids
Ionic solids
Metallic solids

2. Which of the following is a crystalline solid?

Glass
Quartz
Rubber

3. Which defect reduces the density of a crystal?

Frenkel defect
Schottky defect
Metal excess defect

4. Coordination number in FCC unit cell is:

6
8
12

5. Packing efficiency of simple cubic unit cell is:

68%
74%
52.4%

6. Example of a covalent network solid is:

NaCl
Diamond
Ice

7. In body centered cubic structure, number of atoms per unit cell is:

1
2
4

8. Anisotropy is observed in:

Crystalline solids
Amorphous solids
Liquids

9. Which unit cell has atoms only at the corners?

FCC
BCC
Simple cubic

10. In Frenkel defect:

An ion is missing from the lattice
An ion leaves its site and occupies an interstitial site
Extra ion is added

11. Edge length of a unit cell is denoted by:

R
a
d

12. Which solid is isotropic?

Quartz
Glass
NaCl

13. Number of octahedral voids in ‘n’ spheres is:

n
2n
n/2

14. The type of solid defect that leads to color in crystals is:

Frenkel defect
Metal excess defect
Vacancy defect

15. A metal crystallizes in BCC structure. The number of nearest neighbors is:

6
8
12

Quiz: Chapter 2 – Solutions (15 Questions)

1. Which of the following is a colligative property?

Refractive index
Boiling point
Relative lowering of vapor pressure

2. Which unit is used for expressing molality?

mol/L
mol/kg
g/L

3. Which solution shows a negative deviation from Raoult's law?

Acetone + Chloroform
Benzene + Toluene
Ethanol + Water

4. The Van’t Hoff factor for NaCl is approximately:

1
2
3

5. Which law governs the solubility of gases in liquids?

Raoult’s law
Henry’s law
Dalton’s law

6. Molality is independent of:

Temperature
Pressure
Both A and B

7. Which of the following is expressed as mass percentage?

(Mass of solute / Volume of solution) × 100
(Mass of solute / Mass of solution) × 100
(Moles of solute / Volume of solvent) × 100

8. What is the effect of pressure on solubility of gases in liquids?

Increases
Decreases
No effect

9. Boiling point elevation is directly proportional to:

Molarity
Molality
Normality

10. Which solution shows ideal behavior?

Acetone + Water
Benzene + Toluene
HCl + Water

11. Depression in freezing point is used to determine:

Molar mass
Volume
Density

12. Azeotropes are formed by:

Ideal solutions
Non-ideal solutions
Supersaturated solutions

13. Henry's constant increases with:

Decreasing temperature
Increasing temperature
Constant temperature

14. Osmosis is the movement of solvent from:

Lower concentration to higher concentration
Higher concentration to lower concentration
Both directions equally

15. Van’t Hoff factor for K2SO4 is:

2
3
1

Quiz: Chapter 3 – Electrochemistry (15 Questions)

1. Electrolysis of molten NaCl produces:

Na at cathode, Cl₂ at anode
Cl₂ at cathode, Na at anode
NaCl at both electrodes

2. Which of the following is not a unit of conductivity?

S m⁻¹
ohm⁻¹ cm⁻¹
ohm cm

3. Which electrode is used as reference electrode?

Platinum
Standard hydrogen electrode
Zinc

4. The cell in which electrical energy is used to drive a non-spontaneous reaction is:

Electrolytic cell
Galvanic cell
Voltaic cell

5. The standard electrode potential of hydrogen electrode is:

+1.0 V
-1.0 V
0.0 V

6. Nernst equation is used to calculate:

Free energy
Cell potential
EMF of battery

7. Electrochemical cells convert:

Mechanical energy to chemical
Electrical energy to chemical
Chemical energy to electrical

8. Which of the following does not affect conductivity?

Temperature
Concentration
Color of electrolyte

9. The relation between Gibbs free energy and EMF is:

ΔG = nFEcell
ΔG = -nFEcell
ΔG = RTlnK

10. The SI unit of molar conductivity is:

S m² mol⁻¹
ohm⁻¹ m⁻¹
S mol⁻¹ m⁻²

11. The metal which does not liberate H₂ from acid is:

Mg
Zn
Cu

12. EMF of the cell can be calculated using:

Nernst equation
Arrhenius equation
Clausius equation

13. A salt bridge is used to:

Allow gas transfer
Maintain electrical neutrality
Block the flow of ions

14. The EMF of a cell becomes zero when:

Temperature is raised
Cell reaction reaches equilibrium
Electrodes dissolve

15. Faraday’s first law relates:

Amount of heat and voltage
Amount of electricity and mass
Temperature and resistance

Quiz: Chapter 4 – Chemical Kinetics (15 Questions)

1. The rate of a reaction is expressed as:

Change in concentration per unit time
Time per change in concentration
Moles x Time

2. Unit of rate constant for a first order reaction is:

mol⁻¹ L s⁻¹
s⁻¹
mol L⁻¹ s⁻¹

3. Half-life of a first order reaction is:

Directly proportional to initial concentration
Inversely proportional to initial concentration
Independent of initial concentration

4. In a zero-order reaction, rate is:

Constant
Depends on concentration
Depends on time

5. Activation energy is:

Minimum energy required for a reaction
Energy released during reaction
Energy of reactants

6. Arrhenius equation relates rate constant with:

Temperature
Pressure
Concentration

7. Which of the following increases reaction rate?

Catalyst
Impurity
Product

8. The slope of log[R] vs time graph for first order is:

Positive
Zero
Negative

9. Rate law is determined by:

Balanced equation
Experimental data
Product concentration

10. Molecularity of a reaction can be:

Fractional
Whole number only
Zero

11. The value of rate constant changes with:

Time
Temperature
Concentration

12. Which one is not correct for first-order reactions?

Half-life is constant
Rate depends on concentration
Rate is independent of concentration

13. A catalyst:

Changes equilibrium position
Decreases activation energy
Increases ΔH

14. Units of rate constant for zero-order reaction:

mol L⁻¹ s⁻¹
s⁻¹
L mol⁻¹ s⁻¹

15. Which expression represents Arrhenius equation?

k = Ae-Ea/RT
k = A + EaT
k = A/T

Quiz: Chapter 5 – Surface Chemistry (15 Questions)

1. The process of settling of colloidal particles is called:

Peptization
Coagulation
Dialysis

2. Which of the following is a lyophobic colloid?

Gum
Starch
Gold sol

3. Which method is used to purify colloids?

Filtration
Dialysis
Distillation

4. Tyndall effect is observed in:

True solution
Suspension
Colloidal solution

5. The scattering of light by colloidal particles is called:

Brownian movement
Tyndall effect
Coagulation

6. Adsorption is accompanied by:

Increase in enthalpy
Decrease in enthalpy
No change in enthalpy

7. Physical adsorption is also called:

Chemisorption
Van der Waals adsorption
Hydrogen bonding

8. Which enzyme is used in the manufacture of ethyl alcohol from molasses?

Zymase
Maltase
Diastase

9. Which of the following increases the rate of adsorption?

Increase in temperature (chemisorption)
Decrease in surface area
Low pressure

10. Which is true for chemisorption?

It is reversible
It is highly specific
Occurs at low temperature

11. What is Brownian movement?

Sedimentation
Scattering of light
Random motion of colloidal particles

12. Which factor affects the adsorption of a gas on a solid?

Pressure
Surface area
Both A and B

13. Which of the following is not a characteristic of colloids?

Tyndall effect
Brownian movement
Crystallinity

14. The charge on sol particles is due to:

Preferential adsorption
Brownian motion
Coagulation

15. Gold number is:

Amount of lyophilic colloid protecting gold sol
Amount of electrolyte required for coagulation
Number of gold atoms

Quiz: Chapter 6 – General Principles and Processes of Isolation of Elements (15 Questions)

1. The process of heating the ore strongly in the presence of air is called:

Calcination
Roasting
Smelting

2. The removal of gangue from the ore is known as:

Froth flotation
Concentration
Roasting

3. The ore of aluminium is:

Bauxite
Hematite
Galena

4. Which process is used to extract a metal in its molten state using electricity?

Reduction
Electrolysis
Roasting

5. The principle of zone refining is based on:

Sublimation
Boiling point
Differences in solubility

6. Which of the following is used in the froth flotation process?

Pine oil
Kerosene
Diesel

7. Which metal is refined using Mond's process?

Zinc
Nickel
Copper

8. Which method is used for the concentration of sulphide ores?

Hydraulic washing
Froth flotation
Magnetic separation

9. In metallurgy, flux is used to:

Remove volatile impurities
Reduce metal oxide
Remove gangue as slag

10. Which of the following is a carbonate ore?

Bauxite
Malachite
Magnetite

11. Which metal is obtained by electrolytic reduction of fused bauxite?

Iron
Zinc
Aluminium

12. Which of the following is a sulphide ore?

Haematite
Galena
Bauxite

13. Which of these processes is used to refine zirconium?

Distillation
Van Arkel Method
Liquation

14. Liquation method is used for refining:

Tin
Copper
Iron

15. The temperature at which metal melts is:

Boiling point
Freezing point
Melting point

Quiz: Chapter 7 – The p-Block Elements (15 Questions)

1. The oxidation state of nitrogen in nitric acid (HNO₃) is:

+3
+5
+2

2. Which of the following is a brown ring compound?

[Fe(H₂O)₅NO]²⁺
NO₂⁻
NO₃⁻

3. Which is the strongest oxidizing agent?

HNO₃
H₂SO₄
HCl

4. Which form of phosphorus is the most reactive?

White
Red
Black

5. Which is used in the manufacture of fertilizers and explosives?

Nitric acid
Hydrochloric acid
Sulphuric acid

6. Which gas is responsible for the reddish-brown fumes?

NO
NO₂
N₂O

7. Which element shows +3 and +5 oxidation states?

Phosphorus
Nitrogen
Both A and B

8. The structure of PCl₅ is:

Trigonal bipyramidal
Octahedral
Tetrahedral

9. Which is used in the preparation of aqua regia?

HNO₃ + HCl
H₂SO₄ + HCl
HNO₃ + H₂SO₄

10. Which oxyacid of phosphorus is tribasic?

H₃PO₂
H₃PO₄
H₄P₂O₇

11. Oxidation state of sulphur in H₂SO₄ is:

+4
+6
+2

12. Which of the following is a dimeric molecule?

N₂O₅
NO₂
P₄O₁₀

13. The only acid which is stored in wax-coated bottles is:

Nitric acid
Hydrofluoric acid
Hydrochloric acid

14. Group 15 elements are known as:

Halogens
Noble gases
Nitrogen family

15. Which acid is a monobasic acid of phosphorus?

H₃PO₃
H₃PO₂
H₃PO₄

Quiz: Chapter 8 – The d- and f-Block Elements (15 Questions)

1. Which of the following is a d-block element?

Calcium
Iron
Aluminium

2. Which transition metal is liquid at room temperature?

Mercury
Zinc
Copper

3. The highest oxidation state shown by manganese is:

+4
+6
+7

4. Which of the following shows variable oxidation states?

Sodium
Iron
Magnesium

5. The color of transition metal compounds is mainly due to:

s-s transitions
d-d transitions
p-p transitions

6. Which element has completely filled d-orbitals in its ground state?

Zn
Fe
Cu

7. Lanthanides belong to which block?

s-block
d-block
f-block

8. Which of the following has the lowest ionization energy?

Lanthanum
Lutetium
Cerium

9. Which of these is NOT a property of transition metals?

High melting point
Colorless compounds
Variable oxidation states

10. Which oxidation state is most common for iron?

+2
+3
Both A and B

11. The actinoids show greater range of oxidation states due to:

Large atomic size
More f-electrons
Poor shielding

12. Which of these is used as a catalyst in the Contact process?

Cu
V₂O₅
MnO₂

13. Which is the most common oxidation state of Scandium?

+2
+3
+4

14. Lanthanide contraction is due to:

Poor shielding of 4f electrons
Increase in atomic size
Increase in oxidation state

15. Which one is not a transition element?

Zn
Fe
Cr

Quiz: Chapter 9 – Coordination Compounds (15 Questions)

1. What is the coordination number of the central metal in [Cr(NH₃)₆]³⁺?

3
6
4

2. Which of the following is a bidentate ligand?

NH₃
Cl⁻
Ethylenediamine

3. The oxidation number of Co in [Co(CN)₆]³⁻ is:

+3
+6
0

4. Which ligand is ambidentate?

NO₃⁻
SCN⁻
NH₄⁺

5. IUPAC name of [Pt(NH₃)₂Cl₂] is:

Diamminedichloroplatinum(II)
Dichlorodiamineplatinum(II)
Platinum(II) diamminedichloride

6. Which type of isomerism is shown by [Co(NH₃)₄Cl₂]⁺?

Linkage
Geometrical
Ionisation

7. Ligands donate electron pairs to form:

Ionic bonds
Coordinate bonds
Covalent bonds

8. Which compound does not follow Werner’s theory?

[Co(NH₃)₆]Cl₃
[Cr(H₂O)₆]Cl₃
CH₃COONa

9. A coordination compound in which the donor atom is O is:

H₂O
CN⁻
NO⁺

10. Which compound shows ionisation isomerism?

[Co(NH₃)₅Br]SO₄
[Cr(NH₃)₄Cl₂]Cl
[Fe(CN)₆]⁴⁻

11. What is the charge on the complex [Fe(CN)₆]³⁻ if CN⁻ is -1 and Fe is x?

+3
+4
+6

12. The number of ions produced by [Co(NH₃)₅Br]Cl₂ in aqueous solution is:

1
2
3

13. Which of the following shows optical isomerism?

[Cr(en)₃]³⁺
[Cu(NH₃)₄]²⁺
[Ni(CO)₄]

14. Which one is a chelating ligand?

en
NH₃
H₂O

15. In coordination compounds, the central metal atom acts as:

Lewis base
Lewis acid
Bronsted acid

Quiz: Chapter 10 – Haloalkanes and Haloarenes (15 Questions)

1. The general formula of haloalkanes is:

CₙH₂ₙ₊₂X
CₙH₂ₙX
CₙH₂ₙ₋₂X

2. Which of the following is a secondary alkyl halide?

1-bromobutane
2-bromobutane
tert-butyl chloride

3. In SN1 reactions, the rate-determining step involves:

Formation of carbocation
Attack by nucleophile
Removal of leaving group

4. Which compound undergoes nucleophilic substitution fastest?

Methyl bromide
Tert-butyl bromide
Ethyl bromide

5. Which halogen compound is used in fire extinguishers?

Chloroform
Carbon tetrachloride
Bromoethane

6. What is the hybridisation of carbon in CCl₄?

sp
sp²
sp³

7. Chlorobenzene is less reactive towards nucleophilic substitution because:

Cl is strongly electronegative
Resonance stabilizes the molecule
Benzene ring is electron-deficient

8. The major product of reaction between chloromethane and KOH (aq) is:

Methanol
Ethanol
Methane

9. Which test is used to detect halogen in organic compounds?

Beilstein test
Tollen's test
Benedict's test

10. Which of the following is an aryl halide?

Chlorobenzene
Methyl chloride
Ethyl bromide

11. Which is not formed in the reaction of chloroform with air and sunlight?

Phosgene
Carbon monoxide
HCl

12. The decreasing order of reactivity of halides in SN1 is:

Tertiary > Secondary > Primary
Primary > Secondary > Tertiary
Secondary > Tertiary > Primary

13. In Wurtz reaction, the product formed is:

Alkene
Alkane
Alkyne

14. Which of the following is least reactive in SN2 reaction?

Methyl bromide
Ethyl iodide
Tert-butyl chloride

15. A reaction in which halogen atom is replaced by another group is called:

Elimination
Substitution
Addition

Quiz: Chapter 11 – Alcohols, Phenols and Ethers (15 Questions)

1. The functional group in alcohols is:

–COOH
–OH
–CHO

2. Which of the following is a primary alcohol?

2-propanol
2-methyl-2-propanol
Ethanol

3. The IUPAC name of CH₃CH(OH)CH₃ is:

1-propanol
2-propanol
Methanol

4. Phenol is:

Aromatic alcohol
Aliphatic alcohol
Aromatic compound with –OH

5. Which reagent is used to distinguish alcohol from phenol?

NaOH
Na
FeCl₃

6. Ethers are generally:

Acidic
Basic
Neutral

7. The dehydration of alcohols gives:

Alkanes
Alkenes
Alkynes

8. Williamson synthesis is used for the preparation of:

Alcohols
Ethers
Phenols

9. Phenol reacts with bromine water to give:

m-bromophenol
2,4,6-tribromophenol
o-bromophenol

10. Which alcohol reacts fastest with Lucas reagent?

1° alcohol
2° alcohol
3° alcohol

11. Which one is most acidic?

Ethanol
Water
Phenol

12. What is the product of dehydration of ethanol?

Ethene
Acetylene
Methane

13. Diethyl ether is also called:

Methyl ether
Ethoxyethane
Dimethoxyethane

14. Which reagent is used for oxidation of alcohols?

FeCl₃
K₂Cr₂O₇
NH₃

15. Ortho and para directing group in phenol is:

–OH
–NO₂
–COOH

Quiz: Chapter 12 – Aldehydes, Ketones and Carboxylic Acids (15 Questions)

1. The functional group of an aldehyde is:

–COOH
–CHO
–C=O

2. Which of the following is a ketone?

Propanal
Acetone
Methanoic acid

3. IUPAC name of CH₃COCH₃ is:

Propanone
Propanal
Butanone

4. Which one is a carboxylic acid?

Acetone
Acetic acid
Ethanal

5. Tollen’s reagent is used to test for:

Ketones
Aldehydes
Acids

6. Aldehydes and ketones can be reduced to:

Alcohols
Esters
Alkenes

7. Which acid is present in vinegar?

Formic acid
Acetic acid
Benzoic acid

8. Fehling’s solution gives a red precipitate with:

Ketones
Carboxylic acids
Aldehydes

9. Which compound does not reduce Fehling’s solution?

Formaldehyde
Acetone
Acetaldehyde

10. Aldol condensation involves:

Aldehydes only
Ketones only
Both aldehydes and ketones

11. Acidic nature of carboxylic acids is due to:

–OH group
–COOH group
–CH₃ group

12. The oxidation of aldehydes gives:

Alcohols
Ketones
Carboxylic acids

13. Which compound contains both aldehyde and alcohol group?

Glycol
Glyceraldehyde
Acetic acid

14. Which of the following is most acidic?

Ethanol
Ethanal
Ethanoic acid

15. Cannizzaro reaction occurs with:

Aldehydes having α-hydrogen
Aldehydes without α-hydrogen
Ketones

Quiz: Chapter 13 – Amines (15 Questions)

1. The general formula for aliphatic primary amines is:

R₂NH
RNH₂
R₃N

2. Aniline is:

Aromatic alcohol
Aromatic amine
Aliphatic amine

3. Which of the following is a secondary amine?

Diethylamine
Ethylamine
Triethylamine

4. Hinsberg’s reagent is used to distinguish between:

Primary, secondary, and tertiary amines
Aldehydes and ketones
Alcohols and amines

5. Gabriel phthalimide synthesis is used for preparation of:

Secondary amines
Primary aromatic amines
Primary aliphatic amines

6. Aromatic amines are basic due to:

Resonance
Lone pair on nitrogen
Both A and B

7. Acylation of amines involves reaction with:

Carboxylic acid
Acid chloride
Alcohol

8. Diazotization involves reaction of amine with:

NaNO₂ + HCl
H₂SO₄
Br₂ + NaOH

9. Primary amines can be identified by:

Carbylamine test
Lucas test
Fehling’s test

10. In carbylamine reaction, amine reacts with:

CHCl₃ + KOH
CH₃COCl + NH₃
HCl + Zn

11. Aniline reacts with bromine water to give:

Mono-bromoaniline
Tri-bromoaniline
Nitroaniline

12. Which amine does not respond to Hinsberg test?

Primary
Secondary
Tertiary

13. Reduction of nitrobenzene gives:

Benzene
Aniline
Benzaldehyde

14. Amines are:

Acidic
Basic
Neutral

15. Which of the following has the highest basic strength?

Aniline
Methylamine
Ammonia

Quiz: Chapter 14 – Biomolecules (15 Questions)

1. The building blocks of proteins are:

Nucleotides
Fatty acids
Amino acids

2. Which of the following is a disaccharide?

Glucose
Maltose
Fructose

3. Which one is a fibrous protein?

Insulin
Hemoglobin
Keratin

4. The sugar present in RNA is:

Glucose
Deoxyribose
Ribose

5. Enzymes are chemically:

Fats
Carbohydrates
Proteins

6. Which vitamin is water-soluble?

Vitamin D
Vitamin B
Vitamin K

7. Non-essential amino acids are:

Synthesized in body
Not required
Obtained from food

8. In DNA, adenine pairs with:

Thymine
Guanine
Cytosine

9. The simplest amino acid is:

Alanine
Glycine
Valine

10. Which of the following is a polysaccharide?

Sucrose
Starch
Glucose

11. Denaturation of proteins results in:

Primary structure destroyed
Tertiary structure disturbed
Both A and B

12. The vitamin necessary for blood clotting is:

Vitamin C
Vitamin K
Vitamin B12

13. DNA differs from RNA in:

Sugar molecule
Nitrogen base
Both A and B

14. The bond between two amino acids is called:

Hydrogen bond
Peptide bond
Glycosidic bond

15. Which of the following is a reducing sugar?

Sucrose
Glucose
Cellulose