Same chapter2 marksDifficulty: Easy
What is a chemical formula? State what the formula H2SO4 tells you.
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1 markDifficulty: Easy
The valency of aluminium is:
- a1
- b2
- c3
- d4
Original Khojo Papers practice question — not from a past board paper.
Answer
3
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
An aluminium atom has three electrons in its outermost shell, all of which it loses to form the Al3+ ion, so its valency is 3.
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