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Matter

Which of thes...

Question

Which of these molecules is composed of exactly two atoms?
(a) water
(b) sodium chloride
(c) sodium hydroxide
(d) calcium carbonate

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Solution

(b) sodium chloride

Sodium chloride consists of exactly two atoms. These are sodium and chlorine atoms.

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Similar questions

Q. Which of the following is not a salt?
(a) calcium carbonate
(b) sodium hydroxide
(c) potassium nitrate
(d) zinc chloride

Identify the odd one out and justify.

(a) Chloride, nitrate, hydride, ammonium

(b) Hydrogen chloride, sodium hydroxide, calcium oxide, ammonia

(c) Acetic acid, carbonic acid, hydrochloric acid, nitric acid

(d) Ammonium chloride, sodium chloride, potassium nitrate, sodium sulphate

(e) Sodium nitrate, sodium carbonate, sodium sulphate, sodium chloride

(f) Calcium oxide, magnesium oxide, zinc oxide, sodium oxide.

(g) Crystalline blue vitriol, crystalline common salt, crystalline ferrous sulphate, crystalline sodium carbonate.

(h) Sodium chloride, potassium hydroxide, acetic acid, sodium acetate.

Q. Which of these is a salt–hydrochloric acid, sodium hydroxide, sodium chloride?

Q. Which of these is neutral-hydrochloric acid, sodium hydroxide, sodium chloride?

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