1.

Assertion : Cr_(2) O_(7)^(2-) becomesequilibriumwith CrO_(4) ^(2-) at pH gt 5 Reason: Cr_(2) O_(7) ^(2-)istetrahedralhavingCr-O- Crangle109^(@)28

Answer»

bothassertionand reasonare truereasonis thecorrectexplanationof THEASSERTION .
bothassertinandreasonare truebutreasonis notcorrectexplanationof theassertion
Assertionis truebutreasonis FALSE
Bothassertionand reasonare false.

Answer :D


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