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Select the correct options from the foll...

Select the correct options from the following statements :
I `._(6)^(12)C` and `._(6)^(14)C` are isobars of each other .
II `._(6)^(12)C` reacts with `._(8)^(16)O` to from a product which contains ionic bonds .
III `._(20)^(40)` Ca and `._(18)^(40)` Ar are isobars of each other .
IV `._(20)^(40)` Ca reacts with `._(8)^(16)` O to from a compound whose aqueous solution is known as lime water .

A

I and II

B

I and III

C

III and IV

D

I and IV

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