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NEET UG CHEMISTRY MCQ: SOME BASIC CONCEPTS OF CHEMISTRY

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Understanding +4 | -1
Assertion: The atomic mass of an element is given by Dulong-Petit's law: atomic mass ×\times sp. heat (cal/mol)≃6.4(\mathrm{cal} / \mathrm{mol}) \simeq 6.4.
Reason: The formula is valid for metals only and not for all elements.
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Correct option: B
Assertion is wrong but Reason is correct
Option B (Assertion is wrong but Reason is correct) is correct because Dulong-Petit's law provides an approximate atomic mass and is primarily applicable to metals.

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