Q. Identify the correct statements from the following : (a) $CO_2(g)$ is used as refrigerant for ice-cream and frozen food. (b) The structure of $C_{60}$ contains twelve six carbon rings and twenty five carbon rings. (c) ZSM-5, a type of zeolite, is used to convert alcohols into gasoline. (d) CO is colorless and odourless gas.
A) (a) and (c) only
B) (b) and (c) only
C) (c) and (d) only
D) (a), (b) and (c) only
Explanation
[Solution] Solid $CO_2$ (not gas) is the refrigerant, and $C_{60}$ has twenty six-membered and twelve five-membered rings. (c) and (d) are correct. Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.