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Q.

(A) : The electronic configuration of boron cannot be 1s²2s³,
(R) : No two electrons in an atom can have the same set of all the four quantum numbers

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a

A is false but R is true

b

A is true but R is false

c

Both A and R are true and R is the correct explanation

d

Both A and R are true but R is not the correct explanation of A

answer is A.

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Detailed Solution

According to Pauli's exclusion principle , No two electrons can have same set of four quantum numbers.

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