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JEE Main Chemistry question

ChemistryRedox ReactionsJEE Main

The number of elements from the following which exhibit(s) variable oxidation numbers is : Be, B, C, Na, F, Cl, Al, H, Li, O

Answer: 4

Solution

Be, B, Na, Al and Li each show only one fixed non-zero oxidation state, and F shows only . C ( to

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Question ID VK-137158