(a) Name two allotropes of carbon (b) Name two... | WAEC SSCE - Chemistry - 1988 (Objective)

Question 1 Report

(a) Name two allotropes of carbon

(b) Name two products of the destructive distillation of coal and state one use of each.

Answer

Answer Details

(a) Two allotropes of carbon

Allotropes are different forms of the same element existing in the same physical state but with different crystalline structures.

(Buckminsterfullerene, C₆₀, is also acceptable.)

(b) Products of the destructive distillation of coal and one use of each

Destructive distillation of coal is the heating of coal to a high temperature in the absence of air. It yields the following:

Product	One use
Coke	Used as a fuel and as a reducing agent in the blast furnace for extracting iron
Coal gas	Used as a gaseous fuel for heating and lighting
Coal tar	Used in surfacing roads and as a source of dyes and drugs
Ammoniacal liquor	Source of ammonia used in making fertilizers

Any two products with their matching uses are acceptable.

(a) Name two allotropes of carbon (b) Name two products of the destructive distillation of coal and state one use of each.