1. A>B>C
2. C>B>A
3. B>C>A
4. C>A>B
A>B>C
1. reducing agent
2. hydrating agent
3. oxidising agent
4. precipitating agent
reducing agent
1. 2H2O → O2 + 4H+ + 4e-
2. 3F- → 3F + 3e-
3. Al3+ + 3e- → Al
4. 2H+ + 2e- → H2
Al<sup>3+ </sup>+ 3e<sup>-</sup> → Al
1. B2H6
2. B6N6H6
3. B3N3H6
4. B3N3H3
B<sub>3</sub>N<sub>3</sub>H<sub>6</sub>
1. 167, 180, 348
2. 180, 167, 348
3. 348, 167, 180
4. 348, 180, 167
167, 180, 348
1. Fe, Co, Ni
2. Cu, Ag. Au
3. H Zr. Hf
4. Ga, In, Tl
Ga, In, Tl
1. pure form of carbon
2. COCl2
3. mixture of CO and CO2
4. mixture of O2 and CO2
mixture of O<sub>2</sub> and CO<sub>2</sub>
1. As3+>Sb3+>Bi3+
2. Sb3+>Bi3+>As3+
3. Bi3+>As3+>Sb3+
4. Bi3+>Sb3+>As3+
Bi<sup>3+</sup>>Sb<sup>3+</sup>>As<sup>3+</sup>
1. methanol
2. chloral
3. acetylene
4. potassium formate
potassium formate
1. C2H2
2. C2H6
3. C3H8
4. C3H4
C<sub>3</sub>H<sub>4</sub>