Test: MCQs (One or More Correct Option): Analytical Chemistry | JEE Advanced
5 Questions MCQ Test Chemistry 35 Years JEE Main & Advanced Past year Papers | Test: MCQs (One or More Correct Option): Analytical Chemistry | JEE Advanced
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The reagents, NH4Cl and aqueous NH3 will precipitate
Al3+ (third group radical) an d Ca2+ (fifth group radical) precipitate out as their hydroxide with NH4Cl and aq. NH3 (NH4OH) which are the group reagents.
Which of the following statement(s) is (are) correct when a mixture of NaCl and K2Cr2O7 is gently warmed with conc.H2SO4? (1998 - 2 Marks)
The reactions are
Which of the following statement(s) is (are) correct with reference to the ferrous and ferric ions? (1998 - 2 Marks)
The blue precipitate of Fe2+ ions with potassium ferricyanide is due to formation of Turnbull’s blue
The red colouration of Fe3+ ions with potassium thiocyanate is due to the formation of [Fe(CNS)3]
The pair(s) of ions where BOTH the ions are precipitated upon passing H2S gas in presence of dilute HCl, is(are) (JEE Adv. 2015)
Only group II cations precipitate as sulphide with H2S in acidic medium that is (Cu2+, Pb2+) and (Hg2+, Bi3+)
The reagent(s) that can selectively precipitate S2– from a mixture of S2– and SO42– in aqueous solution is(are) (JEE Adv. 2016)
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