Chemistry Class X, NCERT (CBSE) Science Multiple Choice Questions | Carbon and its Compounds - MCQs (Part I)

Class 10, Ncert Cbse Science

Chapter 4, Chemistry CARBON AND ITS COMPOUNDS

Multiple Choice Questions (MCQs) (Part - I) 

Q.1: Which of the following is not a saturated hydrocarbon ?

(a) cyclohexane (b) benzene (c) butane (d) isobutane

Q.2: The bond between two identical nonmetallic atom has a pair of electron ?

(a) unequally shared between two atoms

(b) transferred completely from one atom to another

(c) With identical spins

(d) Equally shared between them

Q.3: Covalent compounds are generally –

(a) Soluble in water  (b) insoluble in water 

(c) Ionize in water (d) hydrolyse in water

Q.4: Propane with molecular formula C₃H₈ has –

(a) 7 covalent bonds (b) 8 covalent bonds

(c) 9 covalent bonds (d) 10 covalent bonds

Q.5: A hydrocarbon reacts with ammonical cuprous chloride solution to form a red precipitate, the hydrocarbon is ­–

(a) Ethane (b) ethane (c) butane (d) 1-propyne

Q.6: Which of the following substance is added to denature Ethanol?

(a) Methanol (b) pyridine (c) copper sulphate (d) all of these

Q.7: Which of the following is not an allotropic form of carbon ?

(a) fluorine (b) fullerene (c) diamond (d) graphite

Q.8: Which of the following represents the correct deceasing order of hydrogen atoms ?

(a) alkanes, alkenes, alkynes  (b) alkanes, alkynes, alkenes

(c) alkenes, alkynes, alkanes  (d) alkynes, alkanes, alkenes

Q.9: Detergents are sodium or potassium salts of long chain of :

(a) aldehydes (b) ketones (c) carboxylic acid (d) sulphonic acid

Q.10: Which of the following represents the structure of N₂ molecule ?

       

Q.11: In double covalent bond there is a sharing of

(a) 2 electrons (b) 4 electrons (c) 6 electrons (d) 3 electrons

Q.12: Cation is formed when

(a) atom gains electrons (b) atom losses electrons

(c) proton is lost by the atom (d) atom shared by electrons

Q.13: The total number of electrons that take part in forming a bond in N₂ is

(a) 2 (b) 4 (c) 6 (d) 10

Q.14: Which of the following has the weakest carbon-carbon strength ?

(a) C₂H₂  (b) C₂H₄  (c) C₂H₆  (d) all have the same bond strength 

Q.15: Which of the following salt when dissolved in water produce hard water ?

(a) calcium sulphate (b) magnesium bicarbonate (c) calcium chloride (d) any of the above.

Answers: 1-b. 2-d. 3-b. 4-d. 5-d. 6-d. 7-a. 8-a. 9-d. 10-a. 11-b. 12-b. 13-c. 14-a. 15-d.

CARBON AND ITS COMPOUNDS Further study

• Carbon and its Compounds - NCERT Solutions of Exercise Questions | Class 10 CBSE Science (Chemistry)

• Carbon and its Compounds - Solutions of In-Text Questions | Class X, NCERT (CBSE) Science - Chemistry

• Class 10 Carbon and its Compounds | Ncert Cbse Science (Chemistry) | Hot Questions - Answers