The only non- metal which is liquid at room temperature is.............

Metals are good conductor of

Metal oxides are

Non metallic oxides are

More reactive metal displaces less reactive metal from its salt solution is known as

Which nonmetal is very essential for our life is

Non-metal used in water purification process

Colour of copper sulphate solution is

Colour of iron sulphate is

Sodium is very reactive metal because it reacts vigorously with oxygen and water and

Red litmus paper turns blue when it is dipped in

The best malleable metal is

Sulphur reacts with oxygen to form ........................

........... is the hardest known substance in nature

Rust is formed when iron combines with

Non metal which is good conductor of electricity