MCQ
The atomic number of an element represents
- ANumber of neutrons in the nucleus
- ✓Number of protons in the nucleus
- CAtomic weight of element
- DValency of element
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${H_3}C - C \equiv CH\,\xrightarrow[{HgS{O_4}}]{{{H_2}O,\,{H_2}S{O_4}}}\,\mathop {Intermediate}\limits_{(A)} \,$$ \to \,\mathop {\Pr oduct}\limits_{(B)} $