Chemistry MCQs

A. 1.5
B. 0.25
C. 0.125
D. None of These

Submitted by: Aamir khan Hullio

Correct Answer: 0.125 ✔

Option A: H2SO4

Option B: HClO4

Option C: O3

Option D: H2C2O4

Correct Answer: D. H₂C₂O₄ ✔

Option A: 40g

Option B: 43.6g 

Option C: 45g

Option D: 41.4g

Correct Answer: 43.6g  ✔

Option A: Practical yield

Option B: Theoretical yield

Option C: Actual yield

Option D: NOT

Correct Answer: Theoretical yield ✔

Option A: C3H8

Option B: CO2

Option C: CO

Option D: CS2

Correct Answer: D. CS₂ ✔

Option A: SO3

Option B: SO2 

Option C: C6H6

Option D: C3H8

Correct Answer: B. SO₂  ✔

Option A: Carbohydrates

Option B: Fats

Option C: Proteins

Option D: Vitamins

Correct Answer: Proteins ✔

Option A: Efflorescence

Option B: Dehydrogenation

Option C: Desalination

Option D: Deliquescence 

Correct Answer: Deliquescence  ✔

Option A: CH4

Option B: C2H6

Option C: C2H4

Option D: C2H2

Correct Answer: D. C₂H₂ ✔

A. sp³ hybridised
B. sp² hybridised 
C. sp hybridised
D. Unhybridised

Submitted by: Aamir khan Hullio

Correct Answer: B. sp² hybridised  ✔

A, White colour
B. Yellow colour
C. Red colour 
D. Blue colour

Submitted by: Aamir khan Hullio

Correct Answer: Red colour  ✔

Option A: Electrophilic addition

Option B: Nucleophilic substitution

Option C: Nucleophilic addition

Option D: Nucleophilic elimination

Correct Answer: Nucleophilic addition ✔

Option A: Aldehydes

Option B: Thio alcohols

Option C: Amines

Option D: Ethers

Correct Answer: Aldehydes ✔

A. Tollen’s reagent
B. Iodoform test 
C. Schiff’s test
D. Benedict’s reagent

Submitted by: Aamir khan Hullio

Correct Answer: Iodoform test  ✔

A. Ethylene oxide
B. HCHO
C. Ethylene glycol
D. Ethyl alcohol

Submitted by: Aamir khan Hullio

Correct Answer: B. HCHO ✔

Option A: Ethanol

Option B: Ethanal

Option C: Propane

Option D: Propanol

Correct Answer: Propane ✔

Option A: Iodoform test

Option B: Lucas test

Option C: Benedict’s test

Option D: Tollen’s test

Correct Answer: Lucas test ✔

Option A: Water

Option B: Ethyl Alcohol

Option C: Phenol

Option D: All of these

Correct Answer: All of these ✔

Option A: Decreases

Option B: Increases

Option C: Remains Same

Option D: None

Correct Answer: Decreases ✔

Option A: Hygrometer

Option B: Hydrometer

Option C: Anemometer

Option D: Viscometer 

Correct Answer: Viscometer  ✔

Option A: Remains same

Option B: Increases

Option C: Decreases

Option D: None

Correct Answer: Decreases ✔

Option A: Decibell

Option B: Torr

Option C: Poise

Option D: Hertz

Correct Answer: Poise ✔

Option A: Low Temp & High Pressure

Option B: High Temp & Low Pressure

Option C: High Temp & High pressure

Option D: Low Temp & Low Pressure

Correct Answer: High Temp & Low Pressure ✔

Option A: 1785

Option B: 1787

Option C: 1880

Option D: 1885

Correct Answer: 1787 ✔

Option A: 0C°

Option B: 273K

Option C: 273.16C°

Option D: -273.16C°

Correct Answer: 273.16C° ✔

A. 1660
B. 1661
C. 1662
D. 1663

Submitted by: Zahid Jagirani

Correct Answer: C. 1662 ✔

Option A: Pascal

Option B: Torricelli

Option C: Newton

Option D: Huygen

Correct Answer: Torricelli ✔

Option A: 1 atm

Option B: 760 Torr

Option C: 76cm of Hg

Option D: All of these 

Correct Answer: All of these  ✔

Option A: Straight

Option B: Parabolic

Option C: Zig-zag

Option D: Hyperbolic

Correct Answer: Straight ✔

Option A: Bohr’s Theory

Option B: Dalton’s Theory

Option C: Kinetic Molecular Theory

Option D: None

Correct Answer: Kinetic Molecular Theory ✔

Option A: Isaac Newton

Option B: Antoine Lavoisier

Option C: Dmitri Mendeleev

Option D: Albert Einstein

Correct Answer: Antoine Lavoisier ✔

Option A: octane number 

Option B: Heptane number

Option C: Reforming

Option D: Refining

Correct Answer: octane number  ✔

Option A: Neutralization

Option B: Osmosis

Option C: Buffer

Option D: Active transport

Correct Answer: Buffer ✔

Option A: 8 to 14

Option B: 6 to 10

Option C: 7 to 11

Option D: 0 to 14

Correct Answer: 8 to 14 ✔

Option A: 9 to 8

Option B: 6 to 7

Option C: 1 to 6

Option D: 1 to 10

Correct Answer: 1 to 6 ✔

Option A: 5

Option B: 3

Option C: 7

Option D: 10

Correct Answer: 7 ✔

Option A: CH4

Option B: He

Option C: N2

Option D: None of These

Correct Answer: He ✔

Option A: Chlorine

Option B: Silver nitrate

Option C: Copper Sulfate

Option D: Nitric acid

Correct Answer: Copper Sulfate ✔

Option A: Light brown

Option B: Light green

Option C: Light Blue

Option D: Light yellow

Correct Answer: Light yellow ✔

Option A: used as mordant in dyeing

Option B: used in photography and medicines

Option C: used in making green pigments

Option D: All of these

Correct Answer: used in photography and medicines ✔

Option A: White

Option B: Brown

Option C: Blue

Option D: Green

Correct Answer: Blue ✔

Option A: Yellow

Option B: Light Yellow

Option C: Brown

Option D: Blue

Correct Answer: Yellow ✔

Option A: Yellow

Option B: Green

Option C: Blue

Option D: White

Correct Answer: White ✔

Option A: Alkali metals

Option B: Aldehydes

Option C: Halides

Option D: Ketones

Correct Answer: Halides ✔

Option A: AgNO3

Option B: CuSO4.5H2O

Option C: K2Cr2O7

Option D: K2CrO4

Correct Answer: CuSO4.5H2O ✔

Option A: CuSO3.4H2O

Option B: CuSO4.4H2O

Option C: CuSO3.5H2O

Option D: CuSO4.5H2O

Correct Answer: CuSO4.5H2O ✔

Option A: CuSO4

Option B: AgNO3

Option C: K2MnO4

Option D: CH3COOH

Correct Answer: AgNO3 ✔

Option A: Blue Stone

Option B: Blue Vitriol

Option C: Lunar Caustic

Option D: Both A & B

Correct Answer: Lunar Caustic ✔

Option A: AgNO

Option B: AgNO2

Option C: AgNO3

Option D: AgNO4

Correct Answer: AgNO ✔

Option A: LiF

Option B: NaCl

Option C: KBr

Option D: CsI

Correct Answer: CsI ✔

Option A: NaHSO3

Option B: Na2S2O3

Option C: Na2S

Option D: Na2SO3

Correct Answer: Na2S2O3 ✔

Option A: Magnese dioxide

Option B: Zinc chloride

Option C: Ammonium chloride

Option D: AOT

Correct Answer: AOT ✔

Option A: Acetone

Option B: Trichloroacetic acid

Option C: Ether

Option D: Alcohol

Correct Answer: Trichloroacetic acid ✔

Option A: Flouride ion

Option B: Bromide ion

Option C: Chloride ion

Option D: Iodide ion

Correct Answer: Flouride ion ✔

Option A: Inversion

Option B: Retention

Option C: Recemic Mixture

Option D: Stereospecific

Correct Answer: Recemic Mixture ✔

Option A: 5.24

Option B: 6.24

Option C: 7.24

Option D: 8.24 

Correct Answer: 8.24  ✔

Option A: As water purifier

Option B: As mordant 

Option C: fire proofing fabrics

Option D: Softening of hard water

Correct Answer: As mordant  ✔

Option A: Mordent dye

Option B: Vat dye

Option C: Acid dye 

Option D: Direct dye

Correct Answer: Direct dye ✔

Option A: Alum

Option B: Chlorine

Option C: Lime

Option D: permangnate

Correct Answer: Lime ✔

Option A: Hg, Pb

Option B: Zn, Mn

Option C: As, CD

Option D: Cd , Pb

Correct Answer: Hg, Pb ✔

Option A: Free radicals

Option B: Cosmic rays

Option C: Nitrogen oxides 

Option D: UV -rays

Correct Answer: UV -rays ✔

Option A: only salt

Option B: Organic matter

Option C: Salt & Organic matter

Option D: Suspended impurity

Correct Answer: Organic matter ✔

Option A: DDT

Option B: mercury salt

Option C: Domestic waste

Option D: Aluminum foil

Correct Answer: Domestic waste ✔

Option A: Water pollution

Option B: Sound pollution

Option C: Soil pollution

Option D: Air pollution 

Correct Answer: Air pollution  ✔

Option A: Source

Option B: Receptor

Option C: Sink

Option D: All of them

Correct Answer: Sink ✔

Option A: COD

Option B: DO

Option C: PH

Option D: Salinity

Correct Answer: COD ✔

Option A: Separating factors 

Option B: decreasing factors

Option C: Colouring factors

Option D: retardation factors

Correct Answer: Separating factors  ✔

Option A: 1.5 kilotons

Option B: 20 kilotons

Option C: 25 kilotons

Option D: 30 kilotons

Correct Answer: 20 kilotons ✔

Option A: Stable

Option B: gaseous form

Option C: Unstable

Option D: Compound forming 

Correct Answer: Compound forming  ✔

Option A: Na-Silicate solution

Option B: Na-sulphate solution

Option C: Na-Chloride solution

Option D: K-Chloride solution

Correct Answer: Na-Silicate solution ✔

Option A: pressure and temperature

Option B: pressure and volume

Option C: heat and volume

Option D: heat and work 

Correct Answer: heat and work  ✔

Option A: Formose 

Option B: Fructose

Option C: Maltose

Option D: Xylose

Correct Answer: Formose  ✔

Option A: Propionic acid

Option B: Cinnamic acid

Option C: Pyruvic acid

Option D: Tartaric acid

Correct Answer: Pyruvic acid ✔

Option A: Acetone

Option B: Acetaldehyde

Option C: Acetic acid

Option D: Methyl acetate

Correct Answer: Acetaldehyde ✔

Option A: 2

Option B: 3

Option C: 1

Option D: more than 3

Correct Answer: 3 ✔

Option A: Natural rubber

Option B: Vulcanized rubber

Option C: synthetic rubber

Option D: All of the above

Correct Answer: synthetic rubber ✔

Option A: Nylon

Option B: Polyester

Option C: bakelite

Option D: PVC

Correct Answer: bakelite ✔

Option A: High density polythene

Option B: Low density polythene

Option C: PVC

Option D: both A and C

Correct Answer: both A and C ✔

Option A: Natural polymers

Option B: semisynthetic polymers

Option C: Synthetic polymers

Option D: None of These

Correct Answer: semisynthetic polymers ✔

Option A: Natural rubber

Option B: Synthetic rubber

Option C: nylon 6-6

Option D: Polystyrene

Correct Answer: nylon 6-6 ✔

Option A: Polyethylene

Option B: PVC

Option C: Orlon

Option D: nylon 6-6

Correct Answer: nylon 6-6 ✔

Option A: biodegradable polymer

Option B: Synthetic polymer

Option C: Natural polymer

Option D: Branched polymer

Correct Answer: biodegradable polymer ✔

Option A: Sp3 hybrid having 8 electrons

Option B: Sp2 hybrid having 6 electron

Option C: sp2 hybrid having 7 electron

Option D: Sp hybrid having linear geometry

Correct Answer: sp2 hybrid having 7 electron ✔

Option A: Permanent effect

Option B: Operate due to electronegativity difference

Option C: temporary effect

Option D: None of the above

Correct Answer: temporary effect ✔

Option A: Reasonable

Option B: no bond reasonable

Option C: Inductive effect

Option D: Electromeric effect

Correct Answer: no bond reasonable ✔

Option A: more stronger

Option B: More weaker

Option C: Not related to acid strength

Option D: None of the above

Correct Answer: more stronger ✔

Option A: No heat enter or leave the system

Option B: Pressure of the system remains constant

Option C: temperature of the system remains constant

Option D: Volume of the system remains unchanged

Correct Answer: temperature of the system remains constant ✔

Option A: Open system

Option B: closed system

Option C: Isolated system

Option D: All of the above

Correct Answer: closed system ✔

Option A: Extensive properties

Option B: Colligative properties

Option C: intensive properties

Option D: None of These

Correct Answer: intensive properties ✔

Option A: open system

Option B: Closed system

Option C: Isolated system

Option D: Inert system

Correct Answer: open system ✔

Option A: Isochoric

Option B: Isobaric

Option C: adiabatic

Option D: Isothermal

Correct Answer: adiabatic ✔

Option A: Hydrogen

Option B: Oxygen

Option C: Nitrogen

Option D: Carbon Dioxide 

Correct Answer: Carbon Dioxide  ✔

Option A: Gram Flour and Water

Option B: Baking Soda and Vinegar

Option C: Cement and Water

Option D: Cornstarch and Water

Correct Answer: Cornstarch and Water ✔

Option A: Cu+2

Option B: Cu+4

Option C: Cu+1

Option D: Cu+3

Correct Answer: Cu+1 ✔

Option A: V+3

Option B: V+2

Option C: V+3

Option D: V+5

Correct Answer: V+2 ✔

Option A: arrangement of electrons in orbitals

Option B: position in the periodic table

Option C: properties depend upon mass

Option D: chemical properties

Correct Answer: properties depend upon mass ✔

Option A: Carboxylic acid

Option B: Acetaldehyde

Option C: Formaldehyde

Option D: Ketone

Correct Answer: Formaldehyde ✔

Option A: greater than true solution

Option B: greater than suspension

Option C: In b/w true solution & suspension

Option D: None of These

Correct Answer: In b/w true solution & suspension ✔

Option A: Bendict solution

Option B: Fehling solution

Option C: Tollens reagent

Option D: None of These

Correct Answer: Tollens reagent ✔

Option A: Mass

Option B: e/m ratio

Option C: Isotopes

Option D: None of These

Correct Answer: e/m ratio ✔