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Questions  

Correct statements among the following are

A) Actinoids show variable oxidation states

B) Highest oxidation state shown by actinoids in their compounds is +6

C) All actinoids are synthetic elements

D) Actinoids react with both acids and alkalies

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detailed solution

Correct option is C

A) Actinoids show variable oxidation states due to a very small energy difference between 7s, 6d and 5f electrons.B)Np and Pu  exihibit maximum oxidation state of +7 in their compoundsC) Actinoids from Z=95 -103 are synthetic elementsD)Actinoids are truely metallic, they react with acids but cannot react with alkalies.

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