What is Hinsberg's reagent

1. A.
   $\text{C}_6\text{H}_5\text{SOCl}_2$
2. B.
   $\text{C}_2\text{H}_5\text{SO}_2\text{Cl}$
3. C.
   $\text{C}_6\text{H}_5\text{SO}_2\text{Cl}$
4. D.
   $\text{C}_2\text{H}_5\text{CrOCl}_2$

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1. A.
   Benzenesulphonyl chloride
2. B.
   Sodium nitroprusside
3. C.
   Chromyl chloride
4. D.
   Hydrazine

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1. A.
   benzene sulfonic acid
2. B.
   benzene sulphonyl chloride
3. C.
   p-toluene sulphonyl chloride
4. D.
   chlorosulphuric acid

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1. A.
   $\mathrm{NaNO_2}$ and HCl
2. B.
   $\mathrm{FeCl_3}$ (alc)
3. C.
   $\mathrm{C_6H_5SO_2Cl}$
4. D.
   $\mathrm{CHCl_3}$ and KOH (alc)

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