Question

A metal with shining appearance reacts with dilute hydrochloric acid evolving hydrogen gas suggest give reason why this metal cannot be copper

Answer 1

ANSWER----

◆ When metal react with acid to give salt and hydrogen gas.

EQUATION = Metal + Acid ---- Salt and Hydrogen gas

◆ We will check hydrogen gas will released or not with the help of pop sound. PoP Sound can be tested by burning a candle and near the test tube, so we can listen pop sound so hydrogen gas is there.

◆ We will take Zinc (Zn)

Equation = Zn + 2HCl --- ZnCl2 + H2

in this above reaction ZnCl2 is salt and H2 is hydrogen gas

Zn = Zinc
HCl = Hydrochloride acid
ZnCl2 = Zinc chloride
H2 = Hydrogen

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