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Q.

Correct statement(s) among the following is/are

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a

Silver can exhibit +2 oxidation state.

b

Zinc is not a transition element because it does not have incompletely filled d-orbitals in both elemental state as well as in its oxidized state.

c

Cr(VI) is more stable than Mo(VI).

d

Zinc has the lowest enthalpy of atomization in its period due to unavailability of any unpaired electrons.

answer is A, B, C.

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Detailed Solution

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Refer NCERT Q.8.1, 8.2 and p.223

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