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General Science

All MCQs

All MCQs

271.

Which functional group is characteristic of nitriles?

A

B

C

D

272.

What is the common name for the organic compound with the chemical formula C3H8O, often used as a solvent and in cosmetics?

A

B

C

D

273.

What is the term for the reaction in which a large molecule is built from smaller ones with the elimination of a small molecule like water?

A

B

C

D

274.

Which functional group is characteristic of ketones?

A

B

C

D

275.

What is the term for the process of converting an unsaturated fat into a saturated one by adding hydrogen?

A

B

C

D

276.

Which organic compound is commonly used as a sweetener and is about 300 times sweeter than sucrose (table sugar)?

A

B

C

D

277.

What is the common name for the organic compound with the chemical formula C2H5OH, often used as a disinfectant and fuel?

A

B

C

D

278.

Which gas is most abundant in Earth's atmosphere?

A

B

C

D

279.

Which subatomic particle carries a positive electric charge?

A

B

C

D

280.

What is the chemical symbol for helium?

A

B

C

D