Chemical Bonding Class 10 ICSE Chemistry MCQ Questions
chemical bonding mcq questions and answers for icse
Looking for Chemical Bonding Class 10 ICSE Chemistry Chapter 2 MCQ Questions? If yes, You are the right page. Here we have provided ICSE class 10 chemistry Chapter 2 multiple choice questions and answers. All MCQ are important.
Multiple choice questions
1) Helium has ______electrons in its outermost shell while other inert gases have 8 electrons in their outermost shell.
a) 1. b) 2. c) 3. d) 4.
Answer-2
2) The transfer of one or more electrons from their outermost shell to other atom forms__________.
a) Coordinate bond. b) Covalent bond. c) Electrovalent bond. d) Polar bond
Answer-Electrovalent bond.
3) Metals _______electrons to form cations.
a) Gain. b) share. c) accept. d) loose
Answer-Loose
4) If the ionisation potential is low for a particular atom, it will ___.
a) Easily gain electrons and form anion.
b) Easily looseelectrons and form cation.
c) Hardly loose electrons to form cation
d) First gain and then loose electrons.
Answer- Easily loose electrons and form cation.
5) Sodium atom forms which type of bond ?
a) Covalent
b) Electrovalent
c) Coordinate
d) Non of the above
Answer- Electrovalent
6) Sodium atom is __ but sodium ion is ______.
a) Non poisonous , poisonous
b) Poisonous, non poisonous
c) Positively charged, neutral
d) Colourless, silvery white
Answer- Poisonous, non poisonous.
7) Sodium atom is ___ active than sodium ion.
a) More
b) Less
c) Moderate
d) Non of the above
Answer- more
8) Sodium ion has how many electrons in their outermost shell?
a) 1
b) 2
c) 3
d) 4
Answer- 1
9) Sodium ion exists in _____ state.
a) Combined
b) Independent
c) Both
d) Non of the above
Answer- Independent.
10) Chlorine atom has ____ colour.
a) Red
b) Bluish
c) Yellowish green
d) Colourless
Answer- Yellowish green
11) Chlorine ion is _____charged.
a) Positively
b) Negatively
c) Neutral
d) Sometimes positive sometimes negative
Answer- Negatively
12) Chlorine atom has _____ odour.
a) Odourless
b) Sweet
c) Suffocating
d) Pungent
Answer- Suffocating
13) During redox reaction the electropositive atom undergoes__
a) Oxidation
b) Reduction
c) Both
d) Non of the above
Answer- Oxidation
14) Covalent bond is formed by ____
a) Accepting electron pair
b) Donating electron pair
c) Sharing of electron pair
d) Sharing of lone pair
Answer- Sharing of electron pair.
15) Each atom contributes ___ electrons during formation of covalent bond.
a) Unequal
b) 5
c) Equal
d) 3
Answer- Equal
16) Bonds formed by unequal sharing of electrons are called as
a) Polar Covalent bond
b) Non polar Covalent bond
c) Polar ionic bond
d) Non polar ionic bond
Answer- Polar Covalent bond.
17) For and atom to from covalent bond both atoms have to share __electrons in their outermost shell.
a) 2
b) 3
c) 4 or more than 4
d) 5 or more than 5
Answer- 4 or more than 4.
18) The rate of reaction is more in ____ as compared to ___ bond.
a) Covalent, electrovalent
b) Coordinate, electrovalent
c) Electrovalent, Covalent
d) Covalent, coordinate
Answer- Electrovalent, Covalent
19- Covalent compounds have _____melting and boiling points
a) High
b) Low
c) Moderate
d) Few have high few have .
Answer- Low
20) Electrovalent compounds are _____ of electricity.
a) Good
b) bad
c) Both
d) Non of the above
Answer- Good
21) Coordinate bond is formed by Sharing of__electrons.
a) electron pair
b) ion pair
c) lone Pair
d) All of these
Answer- Lone pair
22) Ammonia has how many lone pairs ?
a) 2
b) 3
c) 4
d) 1
Answer- 1 lone pair
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8th question is wrong ;-;