Anion/reagents/formula/color And Nature

Question 1

Cl

Answer 1

Hg2(NO3)2,HNO3
Hg2Cl > Hg•
White >gray ppt

Question 2

Br

Answer 2

KMnO4, h2SO4, chloroform
Br2^ red-brown gas/brown gas
Brown gas orange>brown CHCl layer

Question 3

I

Answer 3

KMnO4, H2SO4, chloroform
I2^ Violet gas
Violet/purple layer

CH3COOH, NaNO2, starch soln
I2
Idol-starch complex blue soln

Question 4

CN

Answer 4

Hg2(NO3)2, HNO3
Hg2(CN)2 > Hg•
White>gray ppt

Question 5

Fe(CN)6 4-

Answer 5

FeCl3
Fe4[Fe(CN)6]3
Prussian blue blue ppt

Question 6

Fe(CN)6 3-

Answer 6

FeSO4
Fe3[Fe(CN)6]2
Turnbull’s blue blue ppt

Question 7

SCN

Answer 7

FECl3
Fe(SCN)3
Blood Red soln