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Laboratory Method of Hydrogen Gas Preparation

Non-metals li...

Question

Non-metals like sulphur, phosphorous get oxidized by _________ to form their respective acids.

A

concentrated nitric acid

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B

concentrated sulphuric acid

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C

dilute hydrochloric acid

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D

all of the above

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Solution

The correct option is A concentrated nitric acid
Non metals like sulphur, phosphorous get oxidized by concentrated nitric acid to form their respective acids.
$S + 6 H N O_{3} \to H_{2} S O_{4} + 2 H_{2} O + 6 N O_{2}$

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Similar questions

Q. Indicate if the following statements are true or false.
(a) Oxides of non-metals dissolve in water to form some acids.
(b) Sulphites are salts formed from sulphuric acid.
(c) Phosphoric acid is tribasic.
(d) Nitric acid can only form normal salts.
(e) Hydrochloric acid can form both carbonates and bicarbonate.
(f) Carbonic acid can form both carbonates and bicarbonates.
(g) Water of crystallisation is found in anhydrous salts.
(h) Litmus turns red in the presence of alkalis.
(i) An acid reacts with a carbonate to form a salt, and hydrogen gas is obtained.
(j) Acid taste sweet.
(k) When the metal zinc reacts with hydrochloric acid, a salt called zinc chloride is formed.
(l) when metals react directly with acids, the reaction is called a displacement reaction.
(m) Sulphuric acid has the formula H₂SO₃.
(n) Carbon dioxide gas is given off as a result of displacement reactions between acids and metals.

Q. Which of these is not a mineral acid?

(a) acetic acid
(b) hydrochloric acid
(c) sulphuric acid
(d) nitric acid

Q. Give two main uses each of

(a) sulphuric acid
(b) hydrochloric acid
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Q. Which one of the following is a weak acid?

(a) Oxalic acid
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Q. Which of the following is not a mineral acid?

(a) Hydrochloric acid
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