Question 1
Answer highlighted
The formula of quicklime is?
CaCO₃
CaO ✓
Ca(OH)₂
CO₂
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Free MCQs with answers
Class 10 Science MCQs
Chemical reactions, acids and bases, life processes, electricity, and light.
Parent note
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Question 2
Answer highlighted
A solution with pH less than 7 is?
Acidic ✓
Basic
Neutral
Salt only
Question 3
Answer highlighted
The SI unit of electric current is?
Volt
Ohm
Ampere ✓
Watt
Question 4
Answer highlighted
The green pigment used in photosynthesis is?
Haemoglobin
Chlorophyll ✓
Melanin
Insulin
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