MCQ
Conjugate double bond is present in
- APropylene
- ✓Butadiene
- CIsobutylene
- DButylene
A single bond separated by two double bonds is known as conjugated double bond.
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$3 s^{2}$; $3 s^{2} 3 p^{1}$; $3 s ^{2} 3 p ^{3}$; $3 s^{2} 3 p^{4}$
The correct order of first ionization enthalpy for them is.

$(b)\, NaOH$ in $20\, gm$ will be respectively.
