In which solvent NaCl has maximum solubility?
1.H2O
2.C2H5OH
3.CH3COCH3
4.C2H5OC2H5
Posted Date:-2021-03-07 08:51:13
The main axis of a diatomic molecule is z, molecular orbital px and py overlap to form which of the following orbital?
1.pi molecular orbital
2.sigma molecular orbital
3.gamma molecular orbital
4.No bond will be formed
Posted Date:-2021-03-07 08:51:13
Which one of the following pairs of molecules will have permanent dipole moments for both members?
1.NO2 and CO2
2.NO2 and O3
3.SiF4 and CO2
4.SiF4 and NO2
Posted Date:-2021-03-07 08:51:13
Which one of the following properties is not shown by NO?
1.it is diamagnetic in the gaseous state
2.it is a neutral oxide
3.it combines with oxygen to form nitrogen dioxide
4.its bond order is 2.5
Posted Date:-2021-03-07 08:51:13
BCl3 is a planar molecule whereas NCl3 is pyramidal because
1.B-Cl bond is more polar than NaCl bond
2.N-Cl bond is more covalent than B-Cl bond
3.the nitrogen atom is smaller than boron atom
4.BCl3 has no pair but NCl3 has a lone pair of electrons
Posted Date:-2021-03-07 08:51:13
Ether is more volatile than alcohol having the same molecular formula. This is due to
1.alcohols having resonance structures
2.intermolecular hydrogen bonding in ethers
3.intermolecular hydrogen bonding in alcohols
4.the dipolar character of ethers
Posted Date:-2021-03-07 08:51:13
he maximum number of 90o angles between bond pair-bond pair of electrons is observed in
1.dsp2 hybridisation
2.sp3d hybridisation
3.dsp3 hybridisation
4.sp3d2 hybridisation
Posted Date:-2021-03-07 08:51:13
The compound which contains both ionic and covalent bond:
1.KCl
2.KCN
3.CH4
4.H2
Posted Date:-2021-03-07 08:51:13
Total number of lone pair of electrons in I3- ion is
1.3
2.6
3.9
4.12
Posted Date:-2021-03-07 08:51:13
Which of the following compounds has the smallest bond angle in its molecule?
1.H2O
2.H2S
3.NH3
4.SO2
Posted Date:-2021-03-07 08:51:13