Chemistry

Catalytic hydrogenation of oils results in the production of?

A. soaps B. detergents C. alkanes D. butter E. margarine Correct Answer: Option E - margarine

5 years ago

Which of the following is suitable for determining different isotopes present in an element which exhibits isotopy?

A. Sensitive weighing balance B. Cathoda ray tube C. Mass spectrometer D. Geiger muller counter E. Eudiometer Correct Answer: Option…

5 years ago

Hydrogen is used for the following except?

A. manufacturing of ammonia B. synthesis of hydrochloric acid C. extinguishing fire D. conversion of coal to petrol E. manufacture…

5 years ago

In solution, aminoethanoic acid (glycine) can be represented as NH3+ CH2COO. This implies that it?

A. is soluble in all-inorganic liquids B. can function as a weak acid or a weak base C. does not…

5 years ago

River contaminated by alkali waste will have a pH of about?

A. 1 B. 3 C. 5 D. 7 E. 9 Correct Answer: Option E - 9

5 years ago

An organic compound which reacts readily with bromine to form a compound with the formula CH3CHBrCH2Br is?

A. ethene B. propane C. butane D. propene E. propyne Correct Answer: Option B - propane

5 years ago

When a crystal was added to its solution, it did not dissolve and the solution remained unchanged, showing that the solution was

A. concentrated B. supersaturated C. unsaturated D. colloidal E. saturated Correct Answer: Option E - saturated

5 years ago

What was the mass of copper deposited? (Cu = 64, 1F = 96500 C)

A current of 4.0 amperes was passed through copper (ll) tetraoxosulphate (IV) solution for one hour using copper electrodes. What…

5 years ago

In which of the following crystals are the particles held by van der Waal’s forces only?

A. Sodium chloride B. Ice C. Diamond D. Iodine E. Quartz Correct Answer: Option D - Iodine

5 years ago

Compounds that have the same molecular formula but different structures are said to be?

A. allotropic B. polymorphic C. polymeric D. isomeric E. isotopic Correct Answer: Option D - isomeric

5 years ago