MCQ
The statement true for $N_3^ - $ is
- AIt has a non-linear structure
- BIt is called pseudohalogen
- ✓The formal oxidation state of nitrogen in this anion is $-1$
- DIt is isoelectronic with $N{O_2}$
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Sum of the number of methylene groups $\left(- CH _2-\right.$ ) and oxygen atoms in $R$ is. . . .

The limiting ionic conductivity ( $\Lambda 0$ ) values (in $mS m ^2 mol ^{-1}$ ) for different ions in aqueous solutions are given below:
| Ions | $Ag ^{+}$ | $K ^{+}$ | $Na ^{+}$ | $H ^{+}$ | $NO _3^{-}$ | $CI ^{-}$ | $SO _4^{2-}$ | $OH ^{-}$ | $CH_3COO ^{-}$ |
| $\Lambda_0$ | $6.2$ | $7.4$ | $5.0$ | $35.0$ | $7.2$ | $7.6$ | $16.0$ | $19.9$ | $4.1$ |
For different combinations of titrates and titrants given in $List-l$, the graphs of 'conductance' versus 'volume of titrant' are given in $List-II$.
Match each entry in $List-I$ with the appropriate entry in $List-II$ and choose the correct option.