MCQ
Grignard reagent adds to
- A$ >C = O $
- B$ - C \equiv N$
- C$ >C = S $
- ✓All of the above

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(Critical micelle concentration ($CMC$) is marked with an arrow in the figures.)
$I :$ The three elements are metals.
$II :$ The electro negativities decrease from $X$ to $Y$ to $Z$.
$III :$ The atomic radius decreases in the order $X, Y$ and $Z.$
$IV : X, Y$ and $Z$ could be phosphorus, aluminium and sodium respectively.
