MCQ
$3-Methylhex-2-$ene on reaction with $\mathrm{HBr}$ in presence of peroxide forms an addition product $(A).$ The number of possible stereoisomers for ' $\mathrm{A}$ ' is___________.
- ✓$4$
- B$6$
- C$8$
- D$12$
$2$ chiral centres
No. of stereoisomers $=4$
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$A \xrightarrow[\left( 2 \right)Zn-{{H}_{2}}O]{\left( 1 \right){{O}_{3}}}$ Ethane$-1,2-$dicarbaldehyde $+$ Glyoxal$/$Oxaldehyde
$B \xrightarrow[\left( 2 \right)Zn-{{H}_{2}}O]{\left( 1 \right){{O}_{3}}} 5-$oxohexanal