Chemistry

The ammonium compound used in the manufacture of dry cells is?

A. NH4NO3 B. (NH4)SO4 C. NH4CI D. (NH4)2CO3 Correct Answer: Option C C. NH4CI

6 years ago

Which of the following substance is an ore of iron?

A. Bauxite B. Cassiterite C. Haematite D. Steel Correct Answer: Option C C. Haematite

6 years ago

Waste plastics accumulate in the soil and pollute the environment because plastic materials are?

A. insoluble in water B. non -biodegradable C. easily affected by heat D. inflammable,le Correct Answer: Option B B. non…

6 years ago

Greenhouse effect can be reduced by controlling?

A. water evaporation B. burning wood and fossil fuel C. the use of aerosols D. the use of artificial fertilizers…

6 years ago

What is CaHb in the following equation? CaHb + 5O2 → 3CO2 + 4H2O

A. C3H4 B. C3H6 C. C3H8 D. C5H10 Correct Answer: Option C C. C3H8

6 years ago

Which of the following compounds is an alkanoate?

A. CH3COOH B. CH3COOCH3 C. CH3CH2OH D. CH3CH2COOH Correct Answer: Option B B. CH3COOCH3

6 years ago

What type of reaction occurs between vegetable oil and plant ash extract?

A. Displacement B. Dehydration C. Neutralization D. Saponiflication Correct Answer: Option D D. Saponiflication

6 years ago

Which of the following industrial processes is chlorines not used?

A. Production of polyvinylchloride (PVC) B. Manufacturing of hydrochloric acid C. Manufacturing of common salt D. Manufacturing of domestic bleach…

6 years ago

Consider the reaction: 2AI(s) + 6H+ (aq) → 2AI³+ (aq) + 3H2(g). What is the total number of moles of electrons transferred from the aluminium atoms to the hydrogen ions?

A. 3 B. 4 C. 5 D. 6 Correct Answer: Option D D. 6

6 years ago

Metals can be extracted from their ores by a process involving?

A. reduction B. oxidation C. hydrolysis D. decomposition Correct Answer: Option A A. reduction

6 years ago
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