More Classes
5th Class
6th Class
7th Class
8th Class
9th Class
10th Class
11th Class
12th Class
NAT I
NAT II
CSS
IQ
General Knowledge
MDCAT
ECAT
GAT General
GAT Subject
Other Links
Go to Home
Online Tests
Chemistry 9th Class English Medium Online Test MCQs With Answers
Question # 1
A covalent bond formed by the mutual sharing of two pairs of electrons between bonded atoms is called.
Choose an answer
Signle covalent bond
Double covalent bond
Triple covalent bond
Polar covalent bond
Previous
Skip
Next
Question # 2
CaO or lime is used extensive in steel, glass and paper industries. It is produced inan exothermic reversitble reaction by the decompositon of lie . Choose the conditions to produce maximum amount of lime.
Choose an answer
Heating at high temperatur ein an open vessel
Heating at high temperatur ein a closed vessel
Cooling it in a closed vessel
Colling it in an open vessel
Previous
Skip
Next
Question # 3
What will hapen to the concentrations of the prodcut if a reversible reaction at eqiulibrium is not distrubed.
Choose an answer
They will keepon increasing
They will keep on decreasing
They will remain constant
They willremain constant for some time and then start decreasing
Previous
Skip
Next
Question # 4
The ability of an atom to attract the shared pair of electons towards itself in a molecule is called
Choose an answer
Ionization energy
Electronietativity
Shielding effect
Electron affinity
Previous
Skip
Next
Question # 5
All Acids turn blue litmus.
Choose an answer
Pink
White
Colourless
Red
Previous
Skip
Next
Question # 6
When acids react with metals which gas is evolved?
Choose an answer
O2
N2
Cl2
H2
Previous
Skip
Next
Question # 7
Aerobic respiration releases........energy than anaerobic respiration.
Choose an answer
Equal
Less
More
None of these
Previous
Skip
Next
Question # 8
Who use the word energy for the 1st time
Choose an answer
Rutherford
Bohr
Thomas Young
None of these
Previous
Skip
Next
Question # 9
Whcih of the following atoms obey duplet rule.
Choose an answer
O
2
Cl
2
H
2
Li
2
Previous
Skip
Next
Question # 10
If the Delta H value is negative then reaction witll be
Choose an answer
Endotermic
Exothermic
May or may not be exothermic or endothermic
None of these
Previous
Skip
Next
Question # 11
John Dalton put forward his atomic theory.
Choose an answer
1800
1803
1805
1903
Previous
Skip
Next
Question # 12
The boiling point of water is
Choose an answer
O
o
C
100
o
C
35
o
C
25
o
C
Previous
Skip
Next
Question # 13
How many elements are present in 1st period.
Choose an answer
1
2
8
18
Previous
Skip
Next
Back