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
Everyday Science
What is the chemical formula of water?
A
H?SO?
B
CO?
C
O?
D
H?O
Correct Answer
D
Everyday Science
The electrical device that converts AC to DC is called as?
A
Battery
B
Rectifier
C
Transistor
D
None of these
Correct Answer
B
Everyday Science
The ocean water is NOT drinkable due to the presence of large amount of salts, particularly?
A
Sodium chloride
B
Sulphuric acid
C
Zinc promide
D
None of these
Correct Answer
A
Everyday Science
Which of the following gases contributes to global warming?
A
CFC
B
Carbon dioxide
C
Methane
D
All of these
Correct Answer
D