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Byju's Answer

Standard XII

Chemistry

Colours in Coordination Compounds

Which gives b...

Question

Which gives blood red color with ammonium thiocyanate?

F e^{3 +}

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F e^{2 +}

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C u^{2 +}

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C d^{2 +}

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Solution

The correct option is A $F e^{3 +}$
Option (A) is correct. $F e^{3 +}$ gives blood red color with ammonium thiocyanate forming ferric thiocyanate. $F e {(S C N)}_{3}$ is a red salt soluble in water.
$F e^{3 +} + S C N \to [F e (S C N)]^{2 +}$

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Similar questions

Q. Which of the following statement(s) is/are correct with reference to

F e^{2 +}

and

F e^{3 +}

ions ?

F e^{3 +}

gives brown colour with potassium ferricyanide
2.

F e^{2 +}

gives blue colour with potassium ferricyanide
3.

F e^{3 +}

gives red colour with potassium thiocyanate
4.

F e^{2 +}

gives brown colour with ammonium thiocyanate

F e^{3 +}

ions in an aqueous solution gives deep red colouration with both sodium acetate (in excess) and ammonium thiocyanate (slightly acidic). The deep red colouration obtained with ammonium thiocyanate gets decolourised on addition of solution containing

F^{-}

ions. Excess of

C H_{3} C O O N a

is added in the reaction with

F e^{3 +}

because :

F e^{3 +}

ions in an aq. solution gives deep red colouration with both sodium acetate (in excess) and ammonium thiocyanate (slightly acidic).
The deep red colouration obtained with ammonium thiocyanate gets decolourised on addition of solution containing

F^{-}

ions.
The deep Red colouration is due to the formation of :

F e^{3 +}

ions in an aq. solution gives deep red colouration with both sodium acetate (in excess) and ammonium thiocyanate (slightly acidic). The deep red colouration obtained with ammonium thiocyanate gets decolourised on addition of solution containing

F^{-}

ions. Which one of the following statement is false with respect to deep red colouration produced with

N H_{4} S C N

During the formation of ferric thiocyanate and potassium nitrate from ferric nitrate and potassium thiocyanate, the red color is due to the formation of

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Which gives blood red color with ammonium thiocyanate?

The correct option is A Fe3+Option (A) is correct.Fe3+ gives blood red color with ammonium thiocyanate forming ferric thiocyanate.Fe(SCN)3 is a red salt soluble in water.Fe3++SCN→[Fe(SCN)]2+

The correct option is A $F e^{3 +}$
Option (A) is correct. $F e^{3 +}$ gives blood red color with ammonium thiocyanate forming ferric thiocyanate. $F e {(S C N)}_{3}$ is a red salt soluble in water.
$F e^{3 +} + S C N \to [F e (S C N)]^{2 +}$