MCQ
Which of the following is not an element
- AGraphite
- BDiamond
- ✓$22-$ carat gold
- DRhombic sulphur
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${C_6}{H_5}C{H_2}CH(OH)CH{(C{H_3})_2}\xrightarrow{{conc.\,{H_2}S{O_4}}}\,?$
Ibuprofen is
reagents ' $X$ ' and ' $Y$ ' respectively are: