when metal reacts with weak acid the gas evolved is a) So2. b)N2. c) acid and base. d) metal and oxides of metals
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Answer:
d) metal and oxide of metals
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When metal reacts with weak acid
Explanation:
The most appropriate answer would be: Salt of metal and hydrogen gas.
When a metal reacts with a weak acid, the salt of metal with acid is formed with the simultaneous release of hydrogen gas.
For example, a metal such as Magnesium reacts with a weak acid like acetic acid, a salt of magnesium metal will be formed and hydrogen gas would be released.
The release of hydrogen gas can be confirmed by placing a burning candle near the mouth of apparatus, Hydrogen gas being very flammable, burns with popping sound.
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