Question Detail

CHM 102 Sblock elements Objective Question
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Question

How are hydrohalic acids, such as hydrochloric acid (HCl), commonly prepared according to the document?
Options
A By reacting group 1 metal hydroxides with halogens.
B By reacting the corresponding metal halide (e.g., NaCl) with a strong acid (e.g., H₂SO₄).
Correct Answer
C By direct combination of hydrogen gas and the respective halogen gas.
D By dissolving metal halides in water.
Correct Answer

Option B is the correct answer.

Detailed Explanation

Page 12 states: 'Hydrohalic acids such as hydrochloric acid (HCl) can be prepared by reacting the corresponding metal halide such as sodium chloride (NaCl) with a strong acid such as sulphuric acid (H₂SO₄)', and provides the reaction: NaCl(s) + H₂SO₄(l) → NaHSO₄(s) + HCl(g).

Hint

The document provides a specific chemical reaction and explanation for the preparation method.

Question Info

Course: CHM 102
Topic: Sblock elements
Type: Objective
Difficulty: Not specified
Question 1814 of 1999
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