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Subjective Questions: -

Q. No. Questions Skill Marks
1. Zinc reacts with NaOH to form. R 1

a. Hydrogen gas
b. Oxygen gas
c. Chlorine gas
d. Helium gas

2. When non-metals like sulphur reacts with base then, U 1
a. Sulphur hydroxide is formed.
b. Sulphur dioxide is formed.
c. No reaction takes place.
d. Sulphurous acid is formed.

3. Choose the correct option from the following: U 1
(a) If both Assertion and Reason are correct and Reason is the
correct explanation of Assertion.
(b) If both Assertion and Reason are correct, but Reason is not
the correct explanation of Assertion.
(c) If Assertion is correct but Reason is incorrect.
(d) If Assertion is incorrect but Reason is correct.
(e) If Assertion & Reason both are incorrect.
Assertion (A): Zinc reacts with bases to from metal zincate.
Reason (R):Aluminium reacts with bases to from metal
aluminate.
4. Among the following elements, choose the metals that will U & 3
displace hydrogen from sulphuric acid. Also write down the A
balanced chemical equation for it.

a. Sodium.
b. Copper.
c. Potassium.

5. 1. Write the word equation, chemical equation and balance it. 5.
 What happens when zinc is added in a beaker
containing solution of copper sulphate?
2. Explain with a balanced equation, what will happen if a small
piece of iron nail is dipped in a beaker of copper sulphate
solution.

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