MCQ
One a.m.u is defined as mass of:
- A$\frac{1}{16}^{\text{th}}$ mass of one oxygen atom
- B$\frac{1}{14}^{\text{th}}$ mass of one atom of nitrogen
- C$\frac{1}{12}^{\text{th}}$ mass of one carbon -12 atom
- DNone of above
Explanation:
One a.m.u. is defined as mass of $\frac{1}{12}^\text{th}$ the mass of one carbon -12 atom.
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$3$-ethyny$l-2$-hydroxy-$4$-methylhex-$3$-en-$5$-ynoic acid?
$A$. Compound ' $B$ ' is aromatic
$B$. The completion of above reaction is very slow
$C$. '$A$' shows tautomerism
$D$. The bond lengths $C - C$ in compound $B$ are found to be same
Choose the correct answer from the options given below :
when attached to $sp^3$ hybridised carbon, their leaving group ability in nucleophilic substitution reaction decrease in the order.