MCQ
Write the $IUPAC$ name of the following structure $(E)$


- A$2-$ Ethyl $-3-$ Ethoxy carbonyl propanoic acid
- B$2-$ Ethyl $-2-$ Ethoxy carbonyl ethanoic acid
- C$2-$ Methoxy carbonyl butanoic acid
- ✓$2-$ Ethoxy carbonyl butanoic acid

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| Element | Atomic mass |
| $A$ | $12.01$ |
| $B$ | $35.5$ |
$A$ and $B$ combine to form new substance $X$ . If $4\,moles$ of $B$ combine with $1\,mole$ of $A$ to give $1\,mole$ of $X,$ then weight of one mole of $X$ is ........... $\mathrm{g}$
