The coloured discharge tubes for advertisement mainly contain Xenon Helium Neon Argon TRUE ANSWER : ? YOUR ANSWER : ?
Extensively used nitrogenous fertilizer is Ammonium sulphate Ammonium nitrate Urea Nitro-lime TRUE ANSWER : ? YOUR ANSWER : ?
Laughing gas is Nitric oxide Nitrous oxide Nitrogen trioxide Nitrogen pentoxide TRUE ANSWER : ? YOUR ANSWER : ?
The property of hydrogen which distinguishes it from alkali metals is Its non-metallic character Its affinity for non-metal Its electropositive character Its reducing character TRUE ANSWER : ? YOUR ANSWER : ?
The degree of dissociation of an electrolyte depends on Impurities Method of dissolution Dilution Atmospheric pressure TRUE ANSWER : ? YOUR ANSWER : ?
This group of alumino-silicate minerals is widely used in making electrical insulators Chromite Manganese Mica Bauxite TRUE ANSWER : ? YOUR ANSWER : ?
Which one out of the following helps in burning ? Oxygen Carbon dioxide Nitrogen Carbon monoxide TRUE ANSWER : ? YOUR ANSWER : ?
Which metal does not undergo corrosion due to the formation of oxide layer? Aluminium Iron Zinc Copper TRUE ANSWER : ? YOUR ANSWER : ?
The name of plastic polymer from which combs, toys, bowls etc., can be made, is Polyurethane Metallic polysulphides Polystyrene Teflon TRUE ANSWER : ? YOUR ANSWER : ?