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1.
The strength in volumes of a solution containing 30.36g/L of 
is
is
2.
Tritium emits:
3.
The ratio of electron, proton and neutron in tritium is:
4.
Hydrogen directly combines with
5.
In which of the following reactions, is acting as a reducing agent?
is acting as a reducing agent?
6.
Permutit is the technical name given to
7.
The best method to test whether a clear liquid is water, is to:
8.
An inorganic compound liberates 
when heated, turns an acid solution of KI brown and reduces acidified 
The substance is:
when heated, turns an acid solution of KI brown and reduces acidified The substance is:
9.
Heavy water is qualified as heavy because it is:
10.
Permanent hardness can be removed by adding