Assertion :Bohr's model could not account for the spectra of multi electron species. Reason: Bohr's could not consider inter electronic repulsions.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
The Bohr's model explained spectra of single electron species only hence could not explain spectra of multi electron species. This was because Bohr did not consider the inter electronic repulsion in his model. Hence correct answer is option A.

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