Addition of ethylene dibromide to petrol:

Question: Addition of ethylene dibromide to petrol: (a) Increase the octane number of fuel (b) Helps elimination of lead oxide (c) Removes the sulphur compound in petrol (d) Serves as

Nosocomial infection is:

Question: Nosocomial infection is: (a) Acquired from ‘nose’ of humans (b) Acquired from nasal cavity of animals (c) Hospital acquired (d) An endemic disease Answer: (c) Hospital acquired

In blood, platelets are required for:

Question: In blood, platelets are required for: (a) Transporting oxygen (b) Transporting carbon dioxide (c) Initiating blood clotting (d) Initiating degradation urea Answer: (c) Initiating blood clotting

White phosphorous glows in the dark due to:

Question: White phosphorous glows in the dark due to: (a) Amorphous character (b) Slow oxidation (c) High ignition temperature (d) Good conducting property of electricity Answer: (b) Slow oxidation

Boric acid is an acid because its molecule:

Question: Boric acid is an acid because its molecule: (a) Accepts OH- from water releasing proton (b) Combines with proton from water molecule (c) Contains replaceable H+ ion (d) Gives

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