NEET UG CHEMISTRY MCQ: d & f- BLOCK ELEMENTS

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Analyzing +4 | -1

Assertion :

{\text{U}}{{\text{F}}_6}

is more covalent than

{\text{U}}{{\text{F}}_4}

.

Reason : Fluorine is smaller in size.

View answer and explanation

Correct option: B

If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.

Option A (If both Assertion & Reason are True & the Reason is correct explanation of the Assertion) is correct because smaller fluorine size leads to higher polarization and increased covalent character, making

{\text{U}}{{\text{F}}_6}

more covalent than

{\text{U}}{{\text{F}}_4}

NEET UG CHEMISTRY MCQ: d & f- BLOCK ELEMENTS

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