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Chemical Bonding - 2
1.
Ionization energy is index to the _________ character.
a) Atomic radius
b) metallic
c) Greater
d) Side ways
2.
Electro negativity difference of ________ units shows equal contribution of Tonic & covalent bonds.
a) 1.5
b) 1.6
c) 1.8
d) 1.7
3.
In water molecule experimentally determined HOH bond angle is _________.
a) 105.40
b) 104.40
c) 104.50
d) 105.50
4.
In NH
3
deviation from tetrahedral angle (109.5) is on the basis of repulsion between ________ of electrons.
a) Bond order
b) Stability
c) Side ways
d) Lone pains and bond pains
5.
Pi bond is formed by the __________overlap of two half filled co planer p-orbitals.
a) Side ways
b) Stability
c) Strength
d) Stronger
6.
Number of bonds formed between atoms after the atomic orbitals over lap is called_______.
a) Side ways
b) Greater
c) Stronger
d) Bond order
7.
The enthalpy change in splitting a molecule into its component atom is called._________.
a) Electron - electron
b) Enthalpy of atomization
c) Lone pains and bond pains
d) Atomic radius
8.
Bond energies of multiple bonds are ___ than those of single bond.
a) Stronger
b) Strength.
c) Greater.
d) Side ways
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