Assertion: The maximum oxidation state of chromium in its compounds is +6. Reason: Chromium has only six electrons in ns and (n - 1)d orbitals.

Question

Assertion: The maximum oxidation state of chromium in its compounds is +6. Reason: Chromium has only six electrons in ns and (n - 1)d orbitals. (A) If both assertion and reason are true and reason is the correct explanation of assertion (B) If both assertion and reason are true but reason is not the correct explanation of assertion (C) If assertion is true but reason is false (D) If both assertion and reason are false

Tardigrade Admin · Accepted Answer

Since Chromium Cr has an electronic configuration of [ Ar ] 3 d 5 4 s 1, its maximum oxidation state can be +6,reason being it has only six electrons in ( n -1) d and ns orbitals.

Q. Assertion : The maximum oxidation state of chromium in its compounds is $+ 6$ .
Reason : Chromium has only six electrons in $n s$ and $(n - 1) d$ orbitals.

If both assertion and reason are true and reason is the correct explanation of assertion

If both assertion and reason are true but reason is not the correct explanation of assertion

If assertion is true but reason is false

If both assertion and reason are false

Since Chromium Cr has an electronic configuration of $[A r] 3 d^{5} 4 s^{1}$ , its maximum oxidation state can be $+ 6$ ,reason being it has only six electrons in $(n - 1) d$ and $n s$ orbitals.

Q. Assertion : The maximum oxidation state of chromium in its compounds is +6. Reason : Chromium has only six electrons in ns and (n−1)d orbitals.