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Which one of the following statements is correct?

Option: 1

From a mixed precipitate of AgCl and AgI, ammonia solution dissolves only AgCl


Option: 2

Ferric ions give a deep green precipitate on adding K4Fe(CN)6 solution


Option: 3

On boiling a solution having K+, Ca2+ and HCO3- ions, we get K2Ca(CO3)2


Option: 4

Manganese salts give a violet borax bead test in the reducing flame


Answers (1)

best_answer

As we have learnt,

The reaction occurs as follows:

\mathrm{AgCl\: +\: 2NH_{4}OH\: \rightarrow \: [Ag(NH_{3})_{2}]Cl\: +\: 2H_{2}O}

Fe3+ ions give deep violet colour with K4Fe(CN)6. On boiling K+, Ca2+ and HCO3- containing solution, CaCO3 is formed.
Manganese salts give colourless bead in borax bead test. 

Therefore, Option(1) is correct.

Posted by

Deependra Verma

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