Practice MCQ Questions and answers on General Science-GK

Liquefied Petroleum Gas or LPG consists mainly of methane, propane, propylene, butane, and butylene in various mixtures. It is produced as a by-product of natural gas processing and petroleum refining. The components of LPG are gases at normal temperatures and pressures.

Air is a mixture because we can separate its components while in compound we can not separate it.

Production of chlorofluorocarbons (CFC) gas which is proposed to be banned in India, is used in refrigerator.

A balloon is a flexible bag that can be inflated with a gas, such as helium, hydrogen, nitrous oxide, oxygen, and air.

Zinc and Gold does not contain a coinage metal.

Major sources of lead emissions to the air today are ore and metals processing and piston-engine aircraft operating on leaded aviation gasoline. The highest air concentrations of lead are usually found near lead smelters.

Bronze used for making bells and gongs is essentially an alloy of copper and tin.

It has a high dipole moment.

Yttrium is not an isotope of hydrogen.

The main constituents of pearls are Calcium Carbonate and Magnesium Carbonate.