Question

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Answer 1

Answer:

Zinc reacts with dilute H2SO4 to form zinc sulphate and hydrogen gas.

ii. Zinc reacts with dilute HCl to form zinc chloride and hydrogen gas.

iii. Zinc reacts with dilute HNO3 and forms zinc nitrate, nitrous oxide and water.

iv. Zinc does not react with NaCl.

v. Zinc reacts with sodium hydroxide to form sodium zincate and hydrogen gas.

Answer 2

Answer:

1. zinc reacts with dilute H2So4 to form zinc sulphate and hydrogen gas

zn(s) + H2so4 znso (aq)+ h2

2. zinc reacts with dilute hcl to form zinc chloride and hydogen gas

zn + 2hcl zncl2 + h2 (g)

3. zinc reacts with dilute hno3 and form zinc nitrate , nitrons oxide and water

4zn +10HNo3 4zn (No3) 2 (aq) + N2o (g) + 5h2o (l)

4. zinc does not react with Nacl .

5. zinc reacts with sodium hydroxide to form sodium zincate and hydogen gas

zn (s) + 2NaoH (q) heat Na2znO2 (aq) + H2 (g).

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