CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Nitrogen

Diphenyl amin...

Question

Diphenyl amine gives a deep blue colour with a solution of :

A

F e^{3 +}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

B

N O_{3}^{-}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

C

N O_{2}^{-}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

D

C l^{-}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct options are
A $F e^{3 +}$
B $N O_{3}^{-}$
C $N O_{2}^{-}$
Oxidizing agents like $F e^{3 +}, N O_{3}^{-}$ and $N O_{2}^{-}$ give deep blue colour with diphenyl amine.

Suggest Corrections

thumbs-up

1

Similar questions

Q. When concentrated

H C l

is added to an aqueous solution of

C o {C l}_{2}

its colour changes from reddish pink to deep blue. Which complex ion gives blue colour in this reaction?

Q. Light green solution of (A) does not give blue coloured ppt with

K_{4} [{F e (C N)}_{6}]

but on adding a drop of

{H N O}_{3}

, blue ppt. of (B) appears. However, (A) gives blue colour (C) with

K_{3} [{F e (C N)}_{6}]

. Identify (A) if it, also gives white ppt with

A g {N O}_{3}

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 +}

Study the given statements and select the correct answer.
(i)Cellulose is a homopolymer of glucose.
(ii)Inulin is a homopolymer of fructose.
(iii)Starch gives blue colour and glycogen gives red colour with iodine solution.

(iv)Cellulose gives no colour with iodine solution.

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 :

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Nitrogen

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Standard XII Chemistry

Join BYJU'S Learning Program

CrossIcon