1. P
2. Bi
3. Sb
4. As
Bi
1. 6
2. 7
3. Less than 6
4. More than 7
Less than 6
1. Mg + Ni
2. Ni + Al
3. Mg +Al
4. Mg + Zn
Mg + Zn
1. I2
2. F2
3. Br2
4. Al
F<sub>2</sub>
1. Baeyers
2. Carbylamine
3. Lassaigne
4. Silver mirror
Baeyers
1. px
2. dx2-y2
3. dxy
4. dz2
d<sub>z<sup>2</sup></sub>
1. CH4
2. NH3
3. H2O
4. H2O2
CH<sub>4</sub>
1. 49
2. 98
3. 196
4. 9.8
98
1. Roasting
2. Cupellation
3. Poling
4. Electrolytic reduction
Roasting
1. HF
2. HI
3. HCl
4. HBr
HF