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
9th Class Chemistry Chapter 9 Table of Elements and Their Symbols English Medium KPK Boards Online Mcqs MCQs With Answers
Question # 1
____________ agents gains electrons in chemical reaction.
Choose an answer
Reduction
Oxidation
Both
None of these
Previous
Skip
Next
Question # 2
The branch of chemistry which deals with inter conversion of electrical & chemical energy is:
Choose an answer
Biochemistry
Electrochemistry
Organic chemistry
None of these
Previous
Skip
Next
Question # 3
The formula of rust is:
Choose an answer
Fe
2
O
3
,nH
2
o
Fe
2
O
3
Fe(OH)
3
-nH
2
O
Fe(OH)
3
Previous
Skip
Next
Question # 4
CO2 the oxidation number of C =.
Choose an answer
+1
+2
+3
+4
Previous
Skip
Next
Question # 5
Oxidation means
Choose an answer
Gain of oxygen
Removal of oxygen
Gain of hydrogen
Gain of electrons
Previous
Skip
Next
Question # 6
Nelson's cells used to prepare caustic soda along with gases. Which of the following gas is produced at cathode?
Choose an answer
CI
2
H
2
O
3
O
2
Previous
Skip
Next
Question # 7
____________ are good conductors of electricity.
Choose an answer
Covalent compound
Metals
Both
None of these
Previous
Skip
Next
Question # 8
Addition of OXYGEN is called.
Choose an answer
Reduction
Conduction
Oxidation
Nil
Previous
Skip
Next
Question # 9
Which is used for industrial manufacture of NaCI?
Choose an answer
Daniel cell
Down's cell
Nelson's cell
None of these
Previous
Skip
Next
Question # 10
Which one is not a property of electrolytic cell?
Choose an answer
It consists of one complete cell
Anode has +ve charge
It converts electrical energy into chemical one
Anode has -ve charge
Previous
Skip
Next
Question # 11
In peroxides, the oxidation no. of O is
Choose an answer
+1
-1
+3
-3
Previous
Skip
Next
Back