Multiple choice

Which of the following substances do not show acidic behaviour?

  1. HCl gas

  2. Diluted hydrochloric acid

  3. Diluted sulphuric acid

  4. None of these
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A Correct answer
Explanation

The compound hydrogen chloride has the formula HCl. At room temperature, it is a colorless gas, which forms white fumes of hydrochloric acid upon contact with atmospheric humidity. Hydrogen chloride gas and hydrochloric acid are important in technology and industry. The formula HCl is often used to refer, somewhat misleadingly, to hydrochloric acid, an aqueous solution that can be derived from hydrogen chloride.

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