Uses of Alkali Metals and Its Compounds
CHXI10:THE S-BLOCK ELEMENTS

316027 Match List-I with List-II.
Choose the correct answer from the options given below:
Column I
Column II
A
\(\mathrm{Li}\)
P
absorbent for carbon dioxide
B
\(\mathrm{Na}\)
Q
electrochemical cells
C
\(\mathrm{KOH}\)
R
coolant in fast breeder reactors
D
\(\mathrm{Cs}\)
S
photoelectric cell

1 A - R, B - S, C - Q, D - P
2 A - P, B - R, C - S, D - Q
3 A - Q, B - R, C - P, D - S
4 A - S, B - S, C - R, D - Q
CHXI10:THE S-BLOCK ELEMENTS

316028 The s-block element used as a catalyst in the manufacture of Buna-S rubber is

1 \(\mathrm{Mg}\)
2 \(\mathrm{Ca}\)
3 \(\mathrm{Ba}\)
4 \(\mathrm{Na}\)
CHXI10:THE S-BLOCK ELEMENTS

316029 \(\mathrm{MgO}\) can be used as a refractory material because

1 It has a very high melting point
2 It has a very high vapor pressure
3 It is a very bad conductor of heat
4 It is chemically very reactive
CHXI10:THE S-BLOCK ELEMENTS

316030 Philosopher's wool when heated with BaO at \(1100^{\circ} \mathrm{C}\) gives a compound. Identify the compound.

1 \(\mathrm{BaZnO}_{2}\)
2 \(\mathrm{Ba}+\mathrm{ZnO}_{2}\)
3 \(\mathrm{BaCdO}_{2}\)
4 \(\mathrm{BaO}_{2}+\mathrm{Zn}\)
CHXI10:THE S-BLOCK ELEMENTS

316027 Match List-I with List-II.
Choose the correct answer from the options given below:
Column I
Column II
A
\(\mathrm{Li}\)
P
absorbent for carbon dioxide
B
\(\mathrm{Na}\)
Q
electrochemical cells
C
\(\mathrm{KOH}\)
R
coolant in fast breeder reactors
D
\(\mathrm{Cs}\)
S
photoelectric cell

1 A - R, B - S, C - Q, D - P
2 A - P, B - R, C - S, D - Q
3 A - Q, B - R, C - P, D - S
4 A - S, B - S, C - R, D - Q
CHXI10:THE S-BLOCK ELEMENTS

316028 The s-block element used as a catalyst in the manufacture of Buna-S rubber is

1 \(\mathrm{Mg}\)
2 \(\mathrm{Ca}\)
3 \(\mathrm{Ba}\)
4 \(\mathrm{Na}\)
CHXI10:THE S-BLOCK ELEMENTS

316029 \(\mathrm{MgO}\) can be used as a refractory material because

1 It has a very high melting point
2 It has a very high vapor pressure
3 It is a very bad conductor of heat
4 It is chemically very reactive
CHXI10:THE S-BLOCK ELEMENTS

316030 Philosopher's wool when heated with BaO at \(1100^{\circ} \mathrm{C}\) gives a compound. Identify the compound.

1 \(\mathrm{BaZnO}_{2}\)
2 \(\mathrm{Ba}+\mathrm{ZnO}_{2}\)
3 \(\mathrm{BaCdO}_{2}\)
4 \(\mathrm{BaO}_{2}+\mathrm{Zn}\)
CHXI10:THE S-BLOCK ELEMENTS

316027 Match List-I with List-II.
Choose the correct answer from the options given below:
Column I
Column II
A
\(\mathrm{Li}\)
P
absorbent for carbon dioxide
B
\(\mathrm{Na}\)
Q
electrochemical cells
C
\(\mathrm{KOH}\)
R
coolant in fast breeder reactors
D
\(\mathrm{Cs}\)
S
photoelectric cell

1 A - R, B - S, C - Q, D - P
2 A - P, B - R, C - S, D - Q
3 A - Q, B - R, C - P, D - S
4 A - S, B - S, C - R, D - Q
CHXI10:THE S-BLOCK ELEMENTS

316028 The s-block element used as a catalyst in the manufacture of Buna-S rubber is

1 \(\mathrm{Mg}\)
2 \(\mathrm{Ca}\)
3 \(\mathrm{Ba}\)
4 \(\mathrm{Na}\)
CHXI10:THE S-BLOCK ELEMENTS

316029 \(\mathrm{MgO}\) can be used as a refractory material because

1 It has a very high melting point
2 It has a very high vapor pressure
3 It is a very bad conductor of heat
4 It is chemically very reactive
CHXI10:THE S-BLOCK ELEMENTS

316030 Philosopher's wool when heated with BaO at \(1100^{\circ} \mathrm{C}\) gives a compound. Identify the compound.

1 \(\mathrm{BaZnO}_{2}\)
2 \(\mathrm{Ba}+\mathrm{ZnO}_{2}\)
3 \(\mathrm{BaCdO}_{2}\)
4 \(\mathrm{BaO}_{2}+\mathrm{Zn}\)
CHXI10:THE S-BLOCK ELEMENTS

316027 Match List-I with List-II.
Choose the correct answer from the options given below:
Column I
Column II
A
\(\mathrm{Li}\)
P
absorbent for carbon dioxide
B
\(\mathrm{Na}\)
Q
electrochemical cells
C
\(\mathrm{KOH}\)
R
coolant in fast breeder reactors
D
\(\mathrm{Cs}\)
S
photoelectric cell

1 A - R, B - S, C - Q, D - P
2 A - P, B - R, C - S, D - Q
3 A - Q, B - R, C - P, D - S
4 A - S, B - S, C - R, D - Q
CHXI10:THE S-BLOCK ELEMENTS

316028 The s-block element used as a catalyst in the manufacture of Buna-S rubber is

1 \(\mathrm{Mg}\)
2 \(\mathrm{Ca}\)
3 \(\mathrm{Ba}\)
4 \(\mathrm{Na}\)
CHXI10:THE S-BLOCK ELEMENTS

316029 \(\mathrm{MgO}\) can be used as a refractory material because

1 It has a very high melting point
2 It has a very high vapor pressure
3 It is a very bad conductor of heat
4 It is chemically very reactive
CHXI10:THE S-BLOCK ELEMENTS

316030 Philosopher's wool when heated with BaO at \(1100^{\circ} \mathrm{C}\) gives a compound. Identify the compound.

1 \(\mathrm{BaZnO}_{2}\)
2 \(\mathrm{Ba}+\mathrm{ZnO}_{2}\)
3 \(\mathrm{BaCdO}_{2}\)
4 \(\mathrm{BaO}_{2}+\mathrm{Zn}\)