Match the species given in Column I with properties given in Column II.

Column I	Column II
A. Diborane	1. Used as a flux for soldering metals
B.  Quartz	2. Crystalline form of silica
C. Borax	3. Banana bonds
D. Aluminosilicate	4. Used as a catalyst in petrochemical industries

Codes

	A	B	C	D
1.	3	4	1	2
2.	1	2	3	4
3.	3	2	1	4
4.	4	1	3	2

Given below are two statements: 

Match the species given in Column I with the properties mentioned in Column II.

Codes

The reason behind carbon showing catenation property but lead does not is:

1. Due to the smaller size of C than that of Pb

2. Due to the smaller size of Pb than that of C

3. Due to the smaller ionization energy of C than that of Pb

4. Due to the inert pair effect

Identify the correct statements among the following:

a. ${\mathrm{CO}}_2\left(\mathrm{g}\right)$ is used as a refrigerant for ice-cream and frozen food.

b. The structure of ${\mathrm{C}}_{60}$ contains twelve six-carbon rings and twenty five-carbon rings.

c. ZSM-5, a type of zeolite, is used to convert alcohol into gasoline.

d. CO is a colourless and odourless gas

1. (a) and (c) only

2. (b) and (c) only

3. (c) and (d) only

4. (a), (b) and (c) only

The correct statement among the following regarding behavior of ${\mathrm{BCI}}_3$ $\mathrm{and}$ ${\mathrm{CCI}}_4$ in water is -

Boric acid is a-

1. Protic acid.

2. Weak monobasic acid.

3. Lewis acid.

4. Both '2' and '3'

The effect of heating Boric acid at 370 K or above is -

1. Orthoboric acid changes to metaboric acid.

2. Metaboric acid changes to boric oxide.

3. Both '1' and '2'

4. Neither '1' nor '2'

CO is a poisonous gas because :

Amphoteric oxides are:

1. Tl₂O₃, SiO₂

2. ${\mathrm{CO}}_2$, ${\mathrm{B}}_2{\mathrm{O}}_3$

3. ${\mathrm{B}}_2{\mathrm{O}}_3$, ${\mathrm{SiO}}_2$

4. Al₂O₃ , PbO₂