No. of questions - 27
Time - 15 min
1.
Shape of molecules is decided by:
2.
Which of the following pairs will from the most stable ionic bond?
3.
An electrovalent compound does not exhibit space isomerism due to:
4.
Which of the following atoms has minimum covalent radius?
5.
The low density of ice compared to water is due to
6.
Silicon has 4 electrons in the outermost orbit. In forming the bond:
7.
The bond between atoms of two elements of atomic number 37 and 53 is:
8.
The electron affinity for inert gases is likely to be:
9.
The number of sigma and pi bonds in peroxodisulphuric acid are respectively
10.
The shape of carbon dioxide is
11.
Chlorine atom tends to acquire the structure of:
12.
Intramolecular hydrogen bond is present in
13.
Which of the following characteristics regarding halogens is not correct?
14.
One would expect the elemental form of Cs at room temperature to be:
15.
The number of S – S bonds in sulphur trioxide is
16.
Which of the following is false?
17.
Molecular orbital theory was given by
18.
The bond between two identical non-metal atoms has a pair of electrons:
19.
According to VSEPR theory the repulsion between different pair (lone or bond) of electrons obey the order
20.
What is the effect of more electronegative atom on the strength of ionic bond?
22.
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?
23.
C − Cl bond is stronger than C – I bond, because
25.
Which of the following shows minimum melting point?
26.
Unusually high boiling point of water is result of
27.
Electron deficient species are known as:
