Q16 of 102 Page 76

Name the gas evolved when a metal reacts with a dilute acid.

Metals react with dilute acids to form metallic salts and hydrogen gas. For example, zinc reacts with dilute hydrochloric acid to form zinc chloride and hydrogen gas.


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14

Iron metal reacts slowly with the oxygen and moisture of damp air to form rust. State whether the rust formed is acidic, basic or neutral.

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Name the gas evolved when a metal reacts with water.

 17

Name one metal which reacts with dilute hydrochloric acid to produce hydrogen gas.

 17

Name one metal which does not react with dilute hydrochloric acid.