1. Which of the following is not an ionic compound?

KCl

MgCl2

CCl4

NaCl

2. Reaction between X and Y, forms compound Z. X loses electron and Y gains electron. Which of the following properties is not shown by Z ?

Has high melting point

Insoluble in water

Conducts electricity in molten state

Occurs as solid

3. Read the statements carefully and choose the correct alternative from the following:

Assertion: MgCl₂ is covalent compound.

Reason: Metals and non-metals react by mutual transfer of electrons.

Both the Assertion and the Reason are correct and the Reason is the correct explanation of the Assertion.

The Assertion and the Reason are correct but the Reason is not the correct explanation of the Assertion.

Assertion is true but the Reason is false.

The statement of the Assertion is false but the Reason is true.

4. Which of the following are not ionic compounds?
(i) KCl (ii) HCl
(iii) CCl4 (iv) NaCl

(i) and (ii)

(ii) and (iii)

(iii) and (iv)

(i) and (iii)

5. All ionic compounds :

Have high melting point but low boiling point

are generally soluble in kerosene

are generally brittle

conduct electricity in solid state

6. Which of the following represent mercury (I) ion correctly ?

Hg+

Hg2+

Hg22+

7. An electrolytic cell consists of
(i) positively charged cathode
(ii) negatively charged anode
(iii) positively charged anode
(iv) negatively charged cathode

(i) and (ii)

(iii) and (iv)

(i) and (iii)

(ii) and (iv)

8. Read the statements carefully and choose the correct alternative from the following:

Assertion: Metals are reducing agents.

Reason: Metals form positive ions by loss of electrons.

Both the Assertion and the Reason are correct and the Reason is the correct explanation of the Assertion.

The Assertion and the Reason are correct but the Reason is not the correct explanation of the Assertion.

Assertion is true but the Reason is false.

The statement of the Assertion is false but the Reason is true.

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