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Which statement among the following are ...

Which statement among the following are correct ?
I. `Ce^(+3)` is an oxidizing agent & colourless.
II. `Lu^(3+)` is colourless.
III. Actinoids exhibit a higher number of oxidation states than lanthanoid
IV. All 3d elements give `H_(2)` with 1 M HCl

A

II, III

B

I, III

C

I, II, III

D

I,IV

Text Solution

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The correct Answer is:
C
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