Some Important Compounds MCQs with Answers

One-liner

The chemical formula of Soda Ash is Na₂CO₃ (sodium carbonate).

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The chemical formula of nitrous oxide (laughing gas) is N₂O.

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The molar mass of H₂SO₄ (sulfuric acid) is 98 g/mol.

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In fructose, the ketone functional group is present on carbon number 2.

One-liner

CnH₂nO is the general formula of ketones, though it is also shared by aldehydes as both are functional group isomers.

One-liner

Salinity of sea water is primarily due to the presence of sodium chloride (common salt).

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Erythrose is a monosaccharide commonly known as tetrose because it contains four carbon atoms.

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Sucrose is not a reducing sugar because its anomeric carbons of both glucose and fructose are involved in the glycosidic bond, leaving no free aldehyde or ketone group.

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Lactic acid is not an amino acid; it is an organic acid produced during anaerobic respiration in muscles.

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Hemoglobin is not a carbohydrate; it is a protein found in red blood cells that carries oxygen.