1. Mg2+
2. Na+
3. O2-
4. F-
O<sup>2-</sup>
1. CH3-CO.CH2I
2. CH3I
3. CHI3
4. none of these
CHI<sub>3</sub>
1. CH3-CHO
2. C2H4
3. CH3COOC2H5
4. C2H6
CH<sub>3</sub>-CHO
1. 14
2. 11
3. 42
4. 30
14
1. 4 bridged hydrogens and two terminal hydrogens are present
2. 2 bridged hydrogens and four terminal hydrogens are present
3. 3 bridged and three terminal hydrogens are present
4. None of the above
2 bridged hydrogens and four terminal hydrogens are present
1. Tetrahedral
2. angular
3. Pyramidal
4. trigonal planar
Pyramidal
1. NO2
2. CO2
3. NO2-
4. CN -
NO<sub>2</sub>
1. NH3
2. NO
3. CO
4. BCl3
BCl<sub>3</sub>
1. PH3
2. COCl2
3. NO
4. N2O
N<sub>2</sub>O
1. MgO
2. Na2O
3. Al2O3
4. BaO
Al<sub>2</sub>O<sub>3</sub>