No. of questions - 27
Time - 15 min
1.
Molecular orbital theory was given by
3.
The low density of ice compared to water is due to
4.
Shape of molecules is decided by:
5.
If the bond length and dipole moment of a diatomic molecule are 1.25 A and 1.0 D respectively, what is the per cent ionic character of the bond?
6.
The number of sigma and pi bonds in peroxodisulphuric acid are respectively
7.
The electron affinity for inert gases is likely to be:
8.
The bond between two identical non-metal atoms has a pair of electrons:
9.
Which of the following shows minimum melting point?
10.
Which of the following atoms has minimum covalent radius?
11.
Electron deficient species are known as:
12.
Chlorine atom tends to acquire the structure of:
13.
What is the effect of more electronegative atom on the strength of ionic bond?
14.
The bond between atoms of two elements of atomic number 37 and 53 is:
15.
Which of the following characteristics regarding halogens is not correct?
16.
Which of the following is false?
17.
According to VSEPR theory the repulsion between different pair (lone or bond) of electrons obey the order
18.
Intramolecular hydrogen bond is present in
19.
Silicon has 4 electrons in the outermost orbit. In forming the bond:
20.
The number of S – S bonds in sulphur trioxide is
21.
One would expect the elemental form of Cs at room temperature to be:
22.
C − Cl bond is stronger than C – I bond, because
23.
An electrovalent compound does not exhibit space isomerism due to:
24.
Unusually high boiling point of water is result of
26.
The shape of carbon dioxide is
27.
Which of the following pairs will from the most stable ionic bond?
