MCQ
The correct way$(s)$ of representing $2-$bromobutane is$/$ are:
- A$\mathrm{CH}_3 \mathrm{CHBrCH}_2 \mathrm{CH}_3$
- B
- C

- ✓All of the above

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(Image)
The frequency of the wave is $\mathrm{x} \times 10^{19} \mathrm{~Hz}$. $x=$ . . . . (nearest integer)

