1. Wood and coal
2. Kerosene and diesel
3. Animal bones and charcoal
4. Petroleum and benzene
Petroleum and benzene
1. HF
2. HCl
3. HI
4. HBr
HF
1. Angular
2. Linear
3. Tetrahedral
4. Cyclic
Angular
1. Six
2. Eight
3. Four
4. Five
Eight
1. Sulphides of tin
2. Sulphides of cadmium
3. Sulphides of arsenic
4. Suphides of copper
Suphides of copper
1. I
2. F
3. Cl
4. Br
F
1. Basic
2. Acidic
3. Neutral
4. Amphoteric
Acidic
1. Electronic configuration
2. Resonance
3. Inert pair effect
4. Small size of Pb2+
Electronic configuration
1. PH3
2. CCl4
3. SiCl4
4. PCl5
PH3
1. Six P - P single bonds
2. Four P - P single bonds
3. Four lone pairs of electrons
4. PPP angle of 60 o
Four P - P single bonds