Which of the following are methanides?

Which of the following oxides does not react with $NaOH$ as well as with $HCl$?

Which one of the following elements reacts with steam?

Which among the following is not a property of silicones?

Identify the correct statements from the following:
$(a)$ $CO_{2(s)}$ (dry ice) is used as a refrigerant for ice-cream and frozen food.
$(b)$ The structure of $C_{60}$ contains $20$ six-membered rings and $12$ five-membered rings.
$(c)$ $ZSM-5$,a type of zeolite,is used to convert alcohols into gasoline.
$(d)$ $CO$ is a colorless and odorless gas.

Which of the following is not correct?