"Dry HCl is not acid". How do you prove it?

Why are the noble gases monoatomic ? How do you prove it ?

What is transpiration? How do you prove it by means of a activity?

Answer the following question : How do you prove that earthworm respond to stimulus?

Based on the law of segregation, how do you prove that "gametes are never hybrid".

Hydrogen may be prepared in the laboratory by the action of a metal with an acid. How would you modify your apparatus to collect dry hydrogen ? Which drying agent would you employ for this purpose ?

When HCl reacts with zinc. Which gas will evolved ? How can you prove it ?

How do you prove the Fermentation?

You are given two sets such that a set is not a subset of the other. If you have to prove this , how do you prove?

Hydrogen may be prepared in the laboratory by the action of a metal on an acid. How would you modify your apparatus to collect dry hydrogen ? Which drying agent would you employ for this purpose ?