Chemistry MCQs

Option A: carboxylation

Option B: decarboxylation

Option C: esterification

Option D: hydroxylation

Correct Answer: carboxylation ✔

Option A: alkane

Option B: alkene

Option C: alkyne

Option D: aldehydes

Correct Answer: alkane ✔

Option A: saturated hydrocarbon

Option B: unsaturated hydrocarbon

Option C: paraffins

Option D: both A & C

Correct Answer: paraffins ✔

Option A: iso-alkane

Option B: normal-alkane

Option C: neo-alkane

Option D: branched-alkane

Correct Answer: iso-alkane ✔

Option A: Cl2O

Option B: Cl2O6

Option C: ClO2

Option D: Cl2O7

Correct Answer: Cl2O ✔

Option A: XeF4

Option B: XeOF4

Option C: XeOF2

Option D: Na4XeO6

Correct Answer: XeOF4 ✔

Option A: HF

Option B: HBr

Option C: HC

Option D: HI

Correct Answer: HF ✔

Option A: Xe

Option B: Kr

Option C: Rn

Option D: All of the above

Correct Answer: All of the above ✔

Option A: All are non-metals

Option B: All the halogens have electronic conviguration ns2p5

Option C: They have high electron attinity and ionization energy

Option D: All the halogens react with noble gases to form their halides

Correct Answer: All the halogens react with noble gases to form their halides ✔

Option A: Fluorine

Option B: Chlorine

Option C: Bromine

Option D: Iodine

Correct Answer: Fluorine ✔

Option A: I2O4

Option B: I4O2

Option C: I2O5

Option D: All are equally useful

Correct Answer: I2O5 ✔

Option A: Normal salt

Option B: Double salt

Option C: Mixed salt

Option D: Complex

Correct Answer: Mixed salt ✔

Option A: HCIO

Option B: HCIO2

Option C: HCIO3

Option D: HCIO4

Correct Answer: HCIO ✔

Option A: ns2p2

Option B: ns2p4

Option C: ns2p5

Option D: ns2p6

Correct Answer: ns2p5 ✔

Option A: HF

Option B: HCI

Option C: HBr

Option D: HI

Correct Answer: HF ✔

Option A: fluorine is restricted to -1 oxidation state

Option B: fluorine follows octet rule and as well as extended octet rule

Option C: fluorine has lowest dissociation energy among the halogens

Option D: both B and C

Correct Answer: both B and C ✔

Option A: pale yellow

Option B: freenish yellow

Option C: reddish brown

Option D: grayish black

Correct Answer: freenish yellow ✔

Option A: Cl2O7

Option B: Cl2O6

Option C: ClO2

Option D: all

Correct Answer: ClO2 ✔

Option A: I2

Option B: Br2

Option C: Cl2

Option D: F2

Correct Answer: F2 ✔

Option A: Cl2 is the strongest oxidizing agent

Option B: I2 is a volatile solid

Option C: Br2 is more reactive than Cl2

Option D: Cl2 is insoluble in water

Correct Answer: I2 is a volatile solid ✔

Option A: AgNO3

Option B: AgI

Option C: AgCl

Option D: AgBr

Correct Answer: AgBr ✔

Option A: SbF3 is used for manufacture of pottery

Option B: Sodium fluoroacetate is a rat poison

Option C: Cu F2 is used in ceramic industry

Option D: None of the above

Correct Answer: None of the above ✔

Option A: Cotton

Option B: Costly fabrics

Option C: Linen

Option D: Paper pulb

Correct Answer: Costly fabrics ✔

Option A: NaCLO

Option B: NaClO2

Option C: NaClO3

Option D: NaClO4

Correct Answer: NaCLO ✔

Option A: Flourine

Option B: Chlorine

Option C: Iodine

Option D: Bromine

Correct Answer: Flourine ✔

Option A: Displacement reaction

Option B: Double displacement reaction

Option C: Disproportionation reaction

Option D: Reduction reaction

Correct Answer: Disproportionation reaction ✔

Option A: Cl2O

Option B: ClO2

Option C: Cl2O6

Option D: Cl2O7

Correct Answer: ClO2 ✔

Option A: Iodine solution

Option B: Chlorine

Option C: NaCl

Option D: Ki

Correct Answer: Chlorine ✔

Option A: Fluorine

Option B: Chlorine

Option C: Bromine

Option D: Iodine

Correct Answer: Chlorine ✔

Option A: Fluorine

Option B: Chlorine

Option C: Bromine

Option D: Iodine

Correct Answer: Iodine ✔

Option A: F2

Option B: Cl2

Option C: Br2

Option D: I2

Correct Answer: Cl2 ✔

Option A: F2

Option B: Cl2

Option C: Br2

Option D: I2

Correct Answer: F2 ✔

Option A: F2

Option B: Cl2

Option C: Br2

Option D: I2

Correct Answer: I2 ✔

Option A: Fluorine

Option B: Chlorine

Option C: Astatine

Option D: Iodine

Correct Answer: Astatine ✔

Option A: N2O

Option B: NO2

Option C: HNO2

Option D: HNO3

Correct Answer: HNO3 ✔

Option A: Alkali

Option B: Acid

Option C: Water

Option D: Metals

Correct Answer: Metals ✔

Option A: N2O3

Option B: NO2

Option C: NO

Option D: N2O

Correct Answer: NO ✔

Option A: SO2

Option B: H2S

Option C: CO2

Option D: C2H4

Correct Answer: H2S ✔

Option A: Fe

Option B: A

Option C: Cr

Option D: All of the above

Correct Answer: A ✔

Option A: S

Option B: Se

Option C: Te

Option D: Po

Correct Answer: S ✔

Option A: P2O3

Option B: P2O5

Option C: H3PO3

Option D: All have same smell

Correct Answer: P2O3 ✔

Option A: FeSO4.No

Option B: FeSO4.No2

Option C: FeSO4.No3

Option D: FeSO4.N2o

Correct Answer: FeSO4.No ✔

Option A: Lead pencils

Option B: Abrasive

Option C: Lubricant

Option D: Electrode of electrolytic cell

Correct Answer: Abrasive ✔

Option A: Yolk of egg

Option B: Bone

Option C: Nerves

Option D: Steel

Correct Answer: Steel ✔

Option A: Coloured solid

Option B: Brittle

Option C: Hard

Option D: All of above

Correct Answer: Coloured solid ✔

Option A: Oxidation

Option B: Reduction

Option C: Decomposition

Option D: Both b & c

Correct Answer: Both b & c ✔

Option A: Sb

Option B: N

Option C: As

Option D: P

Correct Answer: N ✔

Option A: Nitrogen

Option B: Phosphorus

Option C: Carbon

Option D: Bismuth

Correct Answer: Nitrogen ✔

Option A: an acid

Option B: a dehydrating agent

Option C: an oxidizing agent

Option D: as sulphonating agent

Correct Answer: a dehydrating agent ✔

Option A: Ferric hydroxide

Option B: Sodium hydroxide

Option C: Calcium hydroxide

Option D: Aluminium hydroxide

Correct Answer: Ferric hydroxide ✔

Option A: Electronic conviguration of valence shell electrons

Option B: Show allotropy

Option C: Polymeric

Option D: Show same oxidation state

Correct Answer: Show same oxidation state ✔

Option A: ZnS

Option B: PbS

Option C: HgS

Option D: FeS

Correct Answer: HgS ✔

Option A: White

Option B: black

Option C: red

Option D: Violet

Correct Answer: black ✔

Option A: hygroscopic

Option B: metals

Option C: polymeric

Option D: all of above

Correct Answer: polymeric ✔

Option A: 1

Option B: 3

Option C: zero

Option D: 2

Correct Answer: 3 ✔

Option A: 260°C

Option B: 360°C

Option C: 630°C

Option D: 620°C

Correct Answer: 360°C ✔

Option A: Phosphine

Option B: Phosphorus

Option C: Water

Option D: Phosphorus pentoxide

Correct Answer: Phosphine ✔

Option A: P2O5

Option B: H2SO4

Option C: Both A and B

Option D: PCI5

Correct Answer: Both A and B ✔

Option A: White

Option B: Red

Option C: Black

Option D: Violet

Correct Answer: White ✔

Option A: Light bearing

Option B: Fire

Option C: Impure

Option D: Tetrahedral

Correct Answer: Light bearing ✔

Option A: PCI5

Option B: P2O3

Option C: P2O5

Option D: All of the above

Correct Answer: All of the above ✔

Option A: Reaction is exothermic

Option B: It is insoluble in water

Option C: Dilute acid is produced

Option D: All of above

Correct Answer: Reaction is exothermic ✔

Option A: ionic

Option B: covalent

Option C: polar

Option D: all varieties are possible

Correct Answer: covalent ✔

Option A: Arsenic

Option B: Phosphorus

Option C: Antimony

Option D: Bismuth

Correct Answer: Phosphorus ✔

Option A: Beryllium

Option B: Carbon

Option C: Silicon

Option D: Aluminium

Correct Answer: Aluminium ✔

Option A: As antiseptic in medicine

Option B: For washing eyes

Option C: In soda bottles

Option D: For enamel and glazes

Correct Answer: In soda bottles ✔

Option A: it combines with H2O to form carbonic acid

Option B: it reacts with red blood cells of haemoglobin

Option C: it is powerful oxidizing agent

Option D: it is used to prepare aerated drinks

Correct Answer: it reacts with red blood cells of haemoglobin ✔

Option A: carbon is non-metal while silicon is semi-metal

Option B: CO2 is an independent molecule while SiO2 has network covalent structure

Option C: CO2 forms multiple bond while silicon does not form multiple bonds

Option D: Silicon has all sigma bonds

Correct Answer: CO2 is an independent molecule while SiO2 has network covalent structure ✔

Option A: Lubricants

Option B: Hydraulic brakes

Option C: Antifreeze

Option D: Water repellent

Correct Answer: Antifreeze ✔

Option A: Na2B4O7.4H2O

Option B: Na2B4O7.5H2O

Option C: Na2B4O7.2H2O

Option D: Na2B4O7.10H2O

Correct Answer: Na2B4O7.5H2O ✔

Option A: Hall process

Option B: Thermite process

Option C: Haber process

Option D: Contact process

Correct Answer: Hall process ✔

Option A: Si

Option B: Ge

Option C: Se

Option D: Sn

Correct Answer: Sn ✔

Option A: A1

Option B: Si

Option C: B

Option D: C

Correct Answer: B ✔

Option A: boron

Option B: carbon

Option C: silicon

Option D: tin

Correct Answer: tin ✔

Option A: iron

Option B: copper

Option C: aluminium

Option D: zinc

Correct Answer: aluminium ✔

Option A: Cu

Option B: Cr

Option C: Ni

Option D: A1

Correct Answer: A1 ✔

Option A: Tincal

Option B: Boric acid

Option C: Calcium carbonate

Option D: Colemanite

Correct Answer: Tincal ✔

Option A: Soil porocity

Option B: Proper growth of plants

Option C: Alkalinity of soil

Option D: All

Correct Answer: Proper growth of plants ✔

Option A: H2SnO3

Option B: H2SiO3

Option C: H3AsO4

Option D: H3SbO4

Correct Answer: H2SiO3 ✔

Option A: Pb2O

Option B: Pb3O4

Option C: PbO2

Option D: All of the above

Correct Answer: Pb3O4 ✔

Option A: decrease

Option B: increase

Option C: remains constant

Option D: first decreases then increases

Correct Answer: increase ✔

Option A: metal borate

Option B: metal meta borate

Option C: metal boride

Option D: metal silicate

Correct Answer: metal meta borate ✔

Option A: it has small size

Option B: it has high nuclear charge

Option C: it forms molecular addition compounds

Option D: all of the above

Correct Answer: all of the above ✔

Option A: Ch3

Option B: OH

Option C: OCH3

Option D: O2

Correct Answer: Ch3 ✔

Option A: As nitrometer

Option B: To remove air bubbles from molten metal

Option C: To produce alloy

Option D: As insulator

Correct Answer: To remove air bubbles from molten metal ✔

Option A: 26%

Option B: 27%

Option C: 37%

Option D: <2.6%

Correct Answer: 37% ✔

Option A: 4

Option B: 2

Option C: 1

Option D: 6

Correct Answer: 4 ✔

Option A: 1s2 2s2 2p3

Option B: 1s2 2s2 2p6 3s2 3p1

Option C: 1s2 2s2 2p4

Option D: 1s2 2s2 2p6 3s2 3p6 4s2 3d1

Correct Answer: 1s2 2s2 2p6 3s2 3p1 ✔

Option A: Acidic oxide

Option B: Basic oxide

Option C: Amphoteric oxide

Option D: It does not exists

Correct Answer: Amphoteric oxide ✔

Option A: Heat resistant

Option B: Low melting

Option C: Used to prepare chemical garden

Option D: Green in colour

Correct Answer: Heat resistant ✔

Option A: More soluble in cold water

Option B: More soluble in hot water

Option C: Insoluble in water

Option D: Soluble only in organic solvents

Correct Answer: More soluble in hot water ✔

Option A: Molecular addition compounds

Option B: Molecular crystals

Option C: Semiconductors

Option D: Ionic compounds

Correct Answer: Molecular addition compounds ✔

Option A: Small size

Option B: High nuclear charge

Option C: Both A and B

Option D: No authorized justification yet

Correct Answer: Both A and B ✔

Option A: Glycol

Option B: Glyoxal

Option C: Vicinal diol

Option D: Both B & C

Correct Answer: Glyoxal ✔

Option A: Oxidation

Option B: Polymerization

Option C: Dehydration

Option D: Condensation

Correct Answer: Polymerization ✔

Option A: Substitution reaction

Option B: Addition reaction

Option C: Elimination reaction

Option D: Oxidation reaction

Correct Answer: Oxidation reaction ✔

Option A: NO3

Option B: NO

Option C: NO2-

Option D: NO2+

Correct Answer: NO ✔

Option A: Substitution reaction

Option B: Addition reaction

Option C: Polymerization reactions

Option D: Oxidation reactions

Correct Answer: Polymerization reactions ✔

Option A: Ether

Option B: Ketone

Option C: Aldehyde

Option D: Ester

Correct Answer: Ketone ✔

Option A: diphenyl amine

Option B: diphenyl methane

Option C: naphthalene

Option D: biphenyl

Correct Answer: naphthalene ✔