Chemistry
Indane gas is mixture of

Butane and hydrogen
Methane and oxygen
Butane and propane
Butane and oxygen

ANSWER DOWNLOAD EXAMIANS APP

Chemistry
Aqua regia is a 1 : 3 mixture, by volume, of

Conc. sulphuric acid and conc. nitric acid
Conc. nitric acid and conc. hydrochloric acid
Conc. nitric acid and conc. sulphuric acid
Conc. hydrochloric acid and conc. nitric acid

ANSWER DOWNLOAD EXAMIANS APP