Metal which reacts with cold water is

__________is used for making aeroplane.

__________react only with water vapour.

It is dangerous to increase _________in our body.

For making the body of ships __________is used.

The ability of metals to produce a particular sound when it is tapped on a hard surface is known as

Pick the odd one out.

I Ton seawater contains____________Kg salt.

Write the chemical formula of verdigris.

Pick the odd one out.