MCQ
The correct order of electronegativity for given elements is:
- A$C > P > At > Br$
- B$Br > P > At > C$
- C$P > Br > C > At$
- ✓$Br > C > At > P$
| Atom | $E.N$ |
| $Br$ | $3.0$ |
| $C$ | $2.5$ |
| $At$ | $2.2$ |
| $P$ | $2.1$ |
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$NH_4NO_{3(s)} \to N_2O_{(g)} + 2H_2O_{(l)}$ .....$kJ$
[Given $pK _{ a }$ of $CH _{3} COOH =4.57$ ]
${I^ - }(aq.) + MnO_4^ - (aq.)\xrightarrow[{weakly\,\,O{H^ - }}]{{Neutral\,\,or}}Y + Mn{O_2}$
$MnO_4^ - (aq.) + M{n^{2 + }}(aq.)\xrightarrow{{ZnS{O_4}}}Z + 4{H^ + }$
Products $X,\,Y$ and $Z$ are respectively :