MCQ
Which shows polymorphism
- A$O$
- B$S$
- C$Se$
- ✓All the above
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$C{H_3} - C \equiv CH\xrightarrow{{Excess\,\, HCl}}\left( A \right)\xrightarrow{{{H_2}O/O{H^\Theta }}}\left( x \right)$
Count the number of atoms existing in their zero oxidation state in each molecule. Their sum is . . . . .