Homolytic fission of C-C bond of ethane (C2H6) which gives an intermediate in which carbon atom is
1.sp3 hybridised
2.sp2 hybridised
3.sp hybridised
4.sp3d hybridised
Posted Date:-2021-03-07 16:03:37
In BrF3 molecule the lone pairs occupy an equatorial position to minimise
1.lone pair-bond pair repulsion only
2.bond pair-bond pair repulsion only
3.lone pair-lone pair repulsion and lone pair-bond pair repulsion
4.lone pair-lone pair repulsion only
Posted Date:-2021-03-07 16:03:37
Select correct statement
1.Cations with 18 electron shells have greater polarising power than the cations with 8-electron shells.
2.Inner shell electrons have a poor shielding effect on the nucleus and thus electronegativity of the 18 electron shell is increased.
3.CuCl is covalent and NaCl is ionic
4.All are correct statements
Posted Date:-2021-03-07 16:03:37
The molecule MLx is planar with six pairs of electrons around M in the valence shell. The value of x is
1.6
2.2
3.4
4.3
Posted Date:-2021-03-07 16:03:37
Which of the following compounds has the electron pair geometry as trigonal bipyramidal with three equatorial positions occupied by lone pairs of electrons?
1.AlCl3
2.XeF2
3.Pt(NH3)2Cl
4.CH3MgBr
Posted Date:-2021-03-07 16:03:37
If the bond length and dipole moment of diatomic molecules are 1.25Ao and 1.0D respectively, what is the percent ionic character of the bond?
1.10.66
2.12.35
3.16.66
4.19.33
Posted Date:-2021-03-07 16:03:37
If the water molecule is linear
1.it would have a very high boiling point
2.it would be highly reactive
3.its dipole moment would be zero
4.it would be highly ionic
Posted Date:-2021-03-07 16:03:37
The hybridisation of phosphorous in POCl3 is the same as in
1.P in PCl3
2.S in SF4
3.Cl in ClF3
4.B in BCl3
Posted Date:-2021-03-07 16:03:37
The molecule, which contains sp3d2 and p orbitals overlapping in it is
1.IF7
2.PCl5
3.BrF5
4.ClF3
Posted Date:-2021-03-07 16:03:37
Total number of electron pairs in PCl5, PCl4+ and PCl6– are respectively
1.20, 16, 24
2.24, 16, 20
3.16, 20, 24
4.24, 20, 16
Posted Date:-2021-03-07 16:03:37