Practice MCQ Questions and answers on Chemistry-GK

Saccharin is a non-nutritive or artificial sweetener. It's made in a laboratory by oxidizing the chemicals o-toluene sulfonamide or phthalic anhydride. It looks like white, crystalline powder.

The compound to which H₂ does not add is Tetraphenyl ethylene.

Ca(CN)₂ is not a nitrogenous fertilizer.

Nitrous oxide is one of the more well-known anesthetic gases, and has been in use for around 200 years. Unlike some other anesthetics, this compound can be used both for inducing unconsciousness and pain control. Chloroform is more potent and more toxic than ether. Its use as an anaesthetic decreased with increased experience and knowledge of its dangers.

Common refrigerants used in domestic refrigerators are Freon, neon and nitrogen. It flows through four components of refrigerator again and again.

Freon is a trade name for a class of chemicals known as Chlorofluorocarbons or CFC's and are used as a refrigerant in air conditioning systems for homes and automobiles.

Ethylene gas, acetylene gas liberated from calcium carbide, and ethephon are some of the commercial ripening agents used successfully in the trade and they have been widely studied for their effectiveness on initiating and accelerating the ripening process and their effect on fruit quality and health related issues.

Linseed oil and castor oils are used mainly as drying agents in paints and varnishes. Linseed oil is generally used in the manufacture of oil paints, drying oil finish or varnish in wood finishing, as a pigment binder in oil paints, as a plasticizer and in the manufacture of linoleum.

KMnO₄ can be used as disinfectant.

A detergent is a cleansing agent.