MCQ
The structure of $H_2O_2$ is:
- Aplanar
- ✓non-planar
- Cspherical
- Dlinear
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$\begin{array}{l}{C_6}{H_5}C{H_3},\\\,\,\,\,\,\,\,\,\,\,{\rm{I}}\end{array}$$\begin{array}{l}{C_6}{H_5}COOH,\\\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{II}}\end{array}$$\begin{array}{l}{C_6}{H_6}\\\,\,\,\,{\rm{III}}\end{array}$$\begin{array}{l}{C_6}{H_5}N{O_2}\\\,\,\,\,\,\,\,\,\,\,{\rm{IV}}\end{array}$

| Period number | Group number | |
| $P$ | $2$ | $15$ |
| $Q$ | $3$ | $2$ |
Then formula of the compound formed by $P$ and $Q$ element is
| List$-I$ Test/Reagents/Observation(s) | List$-II$ Species detected |
| $(a)$ Lassaigne's Test | $(i)$ Carbon |
| $(b)\;Cu ( II )$ oxide | $(ii)$ Sulphur |
| $(c)$ Silver nitrate | $(iii)\;N , S , P ,$ and halogen |
| $(d)$ The sodium fusion extract gives black precipitate with acetic acid and lead acetate | $(iv)$ Halogen Specifically |
The correct match is
$NH_4NO_3(s) \rightarrow N_2O(g) + 2H_2O(l)$