Question

Identify the correct statements from the following:
(1) $C{O}_2\left(g\right)$ is used as refrigerant for ice-cream and frozen food.
(2) The structure of $C_{60}$ contains twelve six carbon rings and twenty five carbon rings.
(3) $\text{ZSM−5}$ a type of zeolite, is used to convert alcohols into gasoline.
(4) $CO$ is colorless and odourless gas.

• A. (1), (2) and (3) only
• B. (1) and (3) only
• C. (2) and (3) only
• D. (3) and (4) only

Answer 1

The correct option is D (3) and (4) only

(1) $C{O}_2\left(s\right)$ (dry ice) [not $C{O}_2\left(g\right)$] is used as refrigerant for ice cream and frozen food.
(2) The structure of $C_{60}$ contains 20 six carbon rings and 12 five carbon rings.
(3) $\text{ZSM−5}$ (a type of zeolite) is used to convert alcohols directly into gasoline.
(4) $CO\left(g\right)$ is colourless and adourless gas