When a colored gas is passed through bromine water,the color is discharged. Which gas is it?

The silicates which contain $Si_2O_7^{6-}$ units are called

Identify the incorrect statement.

The products formed when gaseous $HCl$ is passed into an aqueous $Na_2SO_3$ solution are:

The $INCORRECT$ statement regarding the structure of $C_{60}$ is :

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.