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 10th Class English Medium Unit 9 Online Test MCQs With Answers
Question # 1
When the reaction causes to produced it is called.
Choose an answer
Chemical equlibrium state
Static equilibrium
Dynamic equilibriiun
All
Previous
Skip
Next
Question # 2
The dynamic equilibrium in irreversible reaction.
Choose an answer
Never establishes
Establishes after completion of reaction
Establishes before completion of reaction
Establishes very soon
Previous
Skip
Next
Question # 3
When the number of moles of both sides are equal in a reaction then the unit of Kc will be:
Choose an answer
no unit
mol-2 dm6
mol dm3
mo-2 dn
Previous
Skip
Next
Question # 4
The % age of nitrogen and oxygen in our atmosphere is:
Choose an answer
80
90
95
99
Previous
Skip
Next
Question # 5
If Qc > Kc the reaction will be in
Choose an answer
Chemical equilibrium
Static equilibrium
Reverse reaction
Forward reaction
Previous
Skip
Next
Question # 6
In irreversible reaction, dynamic equilibrium:
Choose an answer
Never establishes
Establishes before the completion of reaction
Establishes after the completion of reaction
Establishes readily
Previous
Skip
Next
Question # 7
The rate of reverse reaction in the beginning.
Choose an answer
Slow
moderate
Very fast
Low
Previous
Skip
Next
Question # 8
The substances formed during the chemical reaction are called.
Choose an answer
Product
Reactants
Radicals
Element
Previous
Skip
Next
Question # 9
Which types of reaction speed up gradually?
Choose an answer
Irreversible reactions
Reversibel reactions
Forward reactions
Decomposition reactions.
Previous
Skip
Next
Question # 10
The forward reaction takes place:
Choose an answer
Right to left
Left to Right
Only to right
Only to left
Previous
Skip
Next
Question # 11
When the magnitude of Kc is very large it indicates.
Choose an answer
Reaction mixture consist of almost all products.
Reaction mixture consist of almost all reactants.
Reaction has not gone to completion
Reaction mixture has negligible products.
Previous
Skip
Next
Question # 12
In the beginning the rate of reverse reaction is
Choose an answer
Negligible
Moderate
Very fast
Slow
Previous
Skip
Next
Question # 13
For which reaction Kf is the rate constant?
Choose an answer
Forward reaction
Backward reaction
Upward reaction
Downward reaction
Previous
Skip
Next
Back