Which of the following statement is correct ? (A) Helium has abnorm...

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Which of the following statement is correct ?
(A) Helium has abnormal behaviour on liquefication
\( \mathrm{W} \)
(B) lodine is readily soluble in \( \mathrm{CS}_{2} \) and the solution is purple in colour
(C) Helium do not form any clathrate
(D) All of these
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