Which no mixing gives deep brown colour :

Ozone gives brown colour with

BAT is brown in colour due to

BAT is brown in colour due to

Nitrate of an element of alkali metal group, decomposes on heating, gives brown colour gas. Nitrate and brown colour gas are respectively:-

Nitrate of an element of alkali metal group, decomposes on heating, gives brown colour gas. Nitrate and brown colour gas are respectively:-

Name the pigment that gives golden brown colour to Diatom.

An original solution of an inorganic salt in dilute HCl gives a brown colouration with potassium hexacyanidoferrate (III) and reddish brown colouration with sodium acetate solution. The cation of the salt is :