What type of hybridization is a diamond?
- sp3
- sp2
- sp
- dp2
Paramagnetic effect is due to?
- unpaired electrons
- paired electron
- unpaired neutron
- none of these
Which of the following does not decrease with the rise in temperature?
- Density
- Vapour pressure
- Surface tension
- .Viscosity
Dipole moment of H2 is ?
- 0
- 1
- 2
- 3
How many sulphur are in rhombic sulphur?
- 4
- 6
- 8
- 10
Heat of the vaporization of radon is ?
- 16.4
- 2.89
- 0.09
- none of these
Number of oxygen atom in metaformaldehyde?
- 2
- 3
- 4
- 5
Which of the following has the shortest C-C bond?
- benzene
- ethane
- diamond
- acetylene
Excluded volume is represented by?
- a
- b
- c
- d
Standard reaction potential of F and Br = ?
- +2.87 and +1.08
- +2.88 and +1.09
- +1.09 and +2.87
- None of these