Assertion: When zinc is added to dil. Hydrochloric acid, hydrogen is given off. Reason: Hydrogen chloride molecules contain hydrochloric acid and hydrogen atoms.
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3
Answer:
a)
Both a and B are correct , B is correct exp of a
all metals react with acids to give H2 gas
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2
The assertion is true and the reason is true but the reason is not the correct explanation of the assertion.
metal + Acid = salt + hydrogen gas
here metal zinc will react with hydrochloric acid and will liberate hydrogen gas and Zinc chloride that is salt.
That is
Zn + HCl = ZnCl2 + H2
On balancing the above equation we will get
Zn+ 2HCl = ZnCl2 + H2
And Hydrogen chloride molecules indeed contain hydrochloric acid and hydrogen atoms.
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