CARBON AND ITS COMPOUNDS

Which of the following is not a saturated hydrocarbon ?

• Cyclohexane.

• Benzene.

• Butane

• isobutene

Which of the following is not an allotropic form of carbon

• Fluorine

• Fullerene

• Diamond

• Graphite

In double covalent bond there is a sharing of

• 2 electrons

• 4 electrons

• 6 electrons

• 3 electrons

1. Cation is formed when

• atom gains electrons

• atom losses electrons

• proton is lost by the atom

• atom shared by electrons

In which of the following compounds, — OH is the functional group?

• Butanone

• Butanol

• Butanoic acid

• Butanal

Chlorine reacts with saturated hydrocarbons at room temperature in the

• absence of sunlight

• presence of sunlight

• presence of water

• presence of hydrochloric acid

The first member of alkyne homologous series is

• ethyne

• ethane

• propyne

• methane

A molecule of ammonia (NH₃) has

• only single bonds

• only double bonds

• only triple bonds

• two double bonds and one single bond

The name of the compound CH₃ — CH₂ — CHO is

• Propanal

• Propanone

• Ethanol

• Ethanal

The functional groups present in propanol and propanal respectively are

• — OH and — CHO

• — OH and — COOH

• — CHO and — COOH

• — CHO and — CO