NEET UG CHEMISTRY MCQ: ORGANIC CHEMISTRY-SOME BASIC PRINCIPLES AND TECHNIQUES

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Analyzing +4 | -1

In what order the reagents

Na_2S, NaCl

and

NaI

are added to an aqueous solution containing

Ag^+, Cu^{+2}

and

Ni^{+2}

ions in order to precipitate

Ag^+

first,

Cu^{+2}

second and

Ni^{+2}

last.

View answer and explanation

Correct option: D

NaCl, NaI, Na_2S

Option D (

NaCl, NaI, Na_2S

) is correct because the solubility products (

K_{sp}

) of the silver, copper, and nickel salts determine the order of precipitation.

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