In (Tetrahedral) molecule
1. Each P is joined to four P
2. Each P is joined to three P
3. Each P is joined to two P
4. does not exist
molecular shapes of 4 are
1. Same with 2, 0 and 1 lone pairs of electrons respectively
2. The same with 1, 1 and 1 lone pairs of electrons respectively
3. Different with 0, 1 and 2 lone pairs of electrons respectively
4. Different with 1, 0 and 2 lone pairs of electrons respectively
Correct regarding edges and faces in respectively
1. 15, 10
2. 10, 10
3. 7, 15
4. 15, 7
Electronegativity of A and B is 1 and 4 respectively. The percentage of the covalent character of AB is
1. 79.5%
2. 8%
3. 20.5%
4. 25%
The element which readily forms an ionic bond has the electronic configuration
1.
2.
3.
4.
In the cyanide ion, the negative charge is on
1. C
2. N
3. Both C and N
4. Resonate between C and N
The order of electronegativity of carbon in sp, hybridized states follows
1.
2.
3.
4.
In which of the dimerization process, the achievement of the octet is not the driving force.
1.
2.
3.
4.