Chapter 4: Carbon and Its Compounds

The correct structural formula of butanoic acid is

Vinegar is a solution of

(a) 50% – 60% acetic acid in alcohol

(b) 5% – 8% acetic acid in alcohol

(c) 5% – 8% acetic acid in water

(d) 50% – 60% acetic acid in water

Mineral acids are stronger acids than carboxylic acids because

(i) mineral acids are completely ionised

(ii) carboxylic acids are completely ionised

(iii) mineral acids are partially ionised

(iv) carboxylic acids are partially ionised

(a) (i) and (iv)

(b) (ii) and (iii)

(c) (i) and (ii)

(d) (iii) and (iv)

Carbon forms four covalent bonds by sharing its four valence electrons with four univalent atoms, e.g. hydrogen. After the formation of four bonds, carbon attains the electronic configuration of

(a) helium

(b) neon

(c) argon

(d) krypton

The correct electron dot structure of a water molecule is

Which of the following is not a straight-chain hydrocarbon?

Which among the following are unsaturated hydrocarbons?

Which of the following does not belong to the same homologous series?

The name of the compound CH3 — CH2 — CHO is

(a) Propanal

(b) Propanone

(c) Ethanol

(d) Ethanal

The heteroatoms present in CH3 — CH2 — O — CH2— CH2 Cl are

(i) oxygen

(ii) carbon

(iii) hydrogen

(iv) chlorine

a) (i) and (ii)

(b) (ii) and (iii)

(c) (iii) and (iv)

(d) (i) and (iv)