The group reagent for the Ist group is- P (1) Conc. Sulphuric acid ...

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The group reagent for the Ist group is-
P
(1) Conc. Sulphuric acid
W
(2) Dil. Sulphuric acid
(3) Dil. \( \mathrm{HCl} \)
(4) Conc. \( \mathrm{HCl} \)
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