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| Column-$I$ | Column-$II$ |
|---|---|
| $(P) NaBr + \text{conc. } H_2SO_4 \rightarrow$ | $(A) \text{રંગહીન વાયુ}$ |
| $(Q) Na_2S + \text{dil. } HCl \rightarrow$ | $(B) \text{કથ્થઈ રંગ}$ |
| $(R) NaNO_2 + \text{dil. } HCl \rightarrow$ | $(C) \text{સડેલા ઈંડા જેવી ગંધ}$ |
| $(S) NaNO_3 + \text{conc. } H_2SO_4 \rightarrow$ | $(D) \text{પેરામેગ્નેટિક}$ |
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