Answers

What is the solubility of a salt if 0.4g of it is obtained on evaporating 200(cm^{3}) of its…

Which of the following equations represents a redox reaction? A. (HNO_{{3}{(aq)}} + NaOH_{(aq)} to NaNO_{{3}{(aq)}} + H_{2}O_{(l)}) B.…

The process of extraction of iron from its ore is A. decomposition B. oxidation C. reduction D. sublimation…

In the upper atmosphere, the ultra-violet light breaks off a free chlorine atom from chlorofluorocarbon molecule. The effect…

Which of the following raw materials is used in the plastic industry? A. Ethene B. Methane C. Sulphur…

Which of the following organic compounds can undergo both addition and substitution reactions? A. Pentane B. Benzene C.…

Which of the following separation techniques can be employed in obtaining solvent from its solution? A. Evaporation B.…

In the removal of water hardness, permutit is regenerated with a strong solution of A. NaOH B. Na(_3)SO(_4)…

Which of the compounds is composed of Al, Si, O and H? A. Epson salt B. Limestone C.…

The alkanoic acid found in human sweat is A. CH(_3)-COOH B. CH(_3)—CH(_2)—COOH C. H-COOH D. CH(_3) Correct Answer:…