Prepare with MCQs
Thousands of verified questions for competitive exams
25K+
MCQs
15+
Categories
500+
Tests
Free
Access
All
๐ General Knowledge
๐ Current Affairs
๐ต๐ฐ Pakistan Affairs
โช Islamic Studies
๐ค English
๐ป Computer
๐งฎ Mathematics
โ Physics
๐งช Chemistry
๐งฌ Biology
๐ฌ Everyday Science
๐ฉโ๐ซ Pedagogy
ุงุฑุฏู Urdu
๐บ World Geography
๐ History
Chemistry
The chemical symbol of Gold is:
A
Gu
B
Gd
C
Au
D
Ag
Correct Answer
C
Chemistry
Which element is known as the lightest element?
A
Helium
B
Hydrogen
C
Nitrogen
D
Oxygen
Correct Answer
B
Chemistry
Which acid is present in vinegar?
A
Sulfuric acid
B
Hydrochloric acid
C
Acetic acid
D
Nitric acid
Correct Answer
C
Chemistry
Which particle has no charge?
A
Proton
B
Electron
C
Neutron
D
Ion
Correct Answer
C
Chemistry
The molecular formula of methane is:
A
CH?OH
B
C?H?
C
CH?
D
C?H?
Correct Answer
C
Chemistry
The molecular formula of methane is:
A
CH?OH
B
C?H?
C
CH?
D
C?H?
Correct Answer
C
Chemistry
Diamond is an allotrope of:
A
Silicon
B
Carbon
C
Sulfur
D
Phosphorus
Correct Answer
B
Chemistry
Which gas is responsible for acid rain?
A
Hydrogen
B
Sulfur dioxide
C
Nitrogen
D
Helium
Correct Answer
B
Chemistry
The chemical symbol of Silver is:
A
Si
B
Ag
C
Au
D
Sr
Correct Answer
B
Chemistry
Avogadro's number is:
A
6.02 ร 10ยฒยณ
B
3.14 ร 10ยฒยณ
C
9.8 ร 10ยฒยณ
D
1.6 ร 10?ยน?
Correct Answer
A