MCQ
Among the given pairs, in which pair second compound has less enol content than first compound?
- A

- B

- ✓

- Dnone of these




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$SO _{2} Cl _{2}+2 H _{2} O \rightarrow H _{2} SO _{4}+2 HCl$ $16\,moles$ of $NaOH$ is required for the complete neutralisation of the resultant acidic mixture. The number of moles of $SO _{2} Cl _{2}$ used is.
$^{200}X \,:\, 90\%$ $^{199}X\, :\, 8.0\%$ $^{202}X\, :\, 2.0\%$
The weighted average atomic mass of the naturally occurring element $X$ is closest to......$amu$