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Question : Which of the following statements is correct?

Option 1: Metals react with acids and produce metal salts and hydrogen gas.

Option 2: Non-metals react with oxygen to produce non-metallic oxides which are basic.

Option 3: On burning, metals react with oxygen to produce acidic metal oxides.

Option 4: Less reactive metals displace more reactive metals from their compounds in aqueous solutions.


Team Careers360 4th Jan, 2024
Answer (1)
Team Careers360 12th Jan, 2024

Correct Answer: Metals react with acids and produce metal salts and hydrogen gas.


Solution : The correct answer is Metals react with acids and produce metal salts and hydrogen gas.

It is an example of a displacement reaction. Metals are placed above hydrogen in the reactivity series, and form metal salts along with hydrogen gas. As acids have the property of giving Hydrogen (H+) ions, the resultant hydrogen gas is produced along with a pop sound.

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