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Chemistry CBSE Live product
Class 9 (2026-27)
Atomic Foundations of Matter
Formula unit mass, Molecular Mass & Chemical Formulae
4.
A&R - Molecular mass
Question:
1
m.
Pick out
the
correct
answer:
Assertion:
\(CO_{2}\) has a greater molecular mass than \(H_{2}O\).
Reason:
Carbon dioxide contains more atoms than water.
Both Assertion and Reason are true, and Reason is the correct explanation of Assertion.
Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
Assertion is true, but Reason is false.
Assertion is false, but Reason is true.
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