MCQ
Which of the following has most density
- A$Fe$
- B$Cu$
- C$B$
- ✓$Pb$
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$(II)$ (figure)
$(III)\, CH_3-N=CH_2$
$(IV)\, C_2H_5-CH=N-OH$
$2MnO_4^ - + 5{C_2}O_4^ - + 16{H^ + } \to 2M{n^{ + + }} + 10C{O_2} + 8{H_2}O$
Here $20\, mL$ of $0.1\, M\, KMnO_4$ is equivalent to