Chemistry Past Paper Questions

Change Subject
Q 871:The reversible reaction is represented by:
A
→
B
←
C
⇌
D
∝
Faisalabad, 2017
View Answer
Q 872:The empirical formula of benzene is:
A
HO
B
CH2O
C
CH
D
H2O3
Faisalabad, 2017
View Answer
Q 873:The example of suspension is:
A
Starch
B
Blood
C
Milk
D
Paints
Faisalabad, 2017
View Answer
Q 874:The example of week electrolyte is:
A
NaOH
B
H2SO4
C
CH3COOH
D
HCl
Faisalabad, 2017
View Answer
Q 875:The formula of rust is:
A
Fe2O3 . nH2O
B
Fe2O3
C
Fe(OH)3 . nH2O
D
Fe(OH)3
Faisalabad, 2017
View Answer
Q 876:The isotope used for the treatment of cancer in the body is:
A
l-131
B
Co-60
C
U-235
D
C-14
Faisalabad, 2017
View Answer
Q 877:The molecular mass of HNO3 is:
A
65 amu
B
63 amu
C
62 amu
D
60 amu
Faisalabad, 2017
View Answer
Q 878:The number of electrons in valence shell of halogens is:
A
5
B
6
C
7
D
8
Faisalabad, 2017
View Answer
Q 879:The number of electrons participated in triple covalent bond is:
A
2
B
4
C
6
D
8
Faisalabad, 2017
View Answer
Q 880:The oxidation number of oxygen in OF2 is:
A
-2
B
-1
C
+1
D
+2
Faisalabad, 2017
View Answer
Total MCQs: 1548Page 88 of 155
Previous88899091929394959697Next
Subjects
Biology
Chemistry
English
Islamiat
Pakistan Studies
Physics