Chemical Bonding(Chemistry ) Questions and answers for exam Preparation

Question 1. In a group, atomic radii increase due to successive increase of

electronic shells
proton shells
neutron shells
nucleus

Explanation:-

Answer: Option A. -> electronic shells
Answer: (a).electronic shells

Question 2. Unit of electro negativity is

one
two
none
three

Explanation:-

Answer: Option C. -> none
Answer: (c).none

Question 3. Distance at which attractive forces of hydrogen overcome repulsive forces is

75.2pm
75.3pm
75.5pm
75.4pm

Explanation:-

Answer: Option D. -> 75.4pm
Answer: (d).75.4pm

Question 4. Ionization energies is influenced by nature of

orbital
nuclear
atom
electron

Explanation:-

Answer: Option A. -> orbital
Answer: (a).orbital

Question 5. First ionization energy of carbon is

1084
1085
1086
1087

Explanation:-

Answer: Option C. -> 1086
Answer: (c).1086

Question 6. atomic number of oxygen is

6
7
8
19

Explanation:-

Answer: Option C. -> 8
Answer: (c).8

Question 7. Force of attraction decreases due to increase of

stark effect
shielding effect
screening effect
Zeeman effect

Explanation:-

Answer: Option B. -> shielding effect
Answer: (b).shielding effect

Question 8. Noble gas cannot react with

fluorine
oxygen
another noble gas
carbon dioxide

Explanation:-

Answer: Option C. -> another noble gas
Answer: (c).another noble gas

Question 9. For gaining stability element, it tends to get configuration of

nearest halogen
nearest alkali metal
nearest noble gases
nearest transition metal

Explanation:-

Answer: Option C. -> nearest noble gases
Answer: (c).nearest noble gases

Question 10. Chemical reactivities and chemical combinations depend upon

physical property
electronic configuration
separation of elements
natural property

Explanation:-

Answer: Option B. -> electronic configuration
Answer: (b).electronic configuration