On adding `AgNO_3` to the Lassaigne solution of a compound, which colour will be obtained if the compound contains
(i) CI (ii) Br (iii) (iv) N (v) S?

In lassaigne's test a blue colour is obtained if the organic compound contains nitrogen. The blue colour is due to

Which colour will appear in the Lassaigne's test if the compound contains both nitrogen and sulphur ?

Which of the following compound(s) contains(s) N-N bond?

In the Lassaigne’s test for nitrogen in an organic compound, the Prussian blue colour is obtained due to the formation of: (a) Na_(4)[Fe(CN)_(6)] (b) Fe_(4)[Fe(CN)_(6)]_(3) (c) Fe_(2)[Fe(CN)_(6)] (d) Fe_(3)[Fe(CN)_(6)]_(4)

Neutral ferric chloride is added to the aqueous solution of acetate. The blood red colour is obtained, it is due to the compound

Give the Lewis structures and empirical formulae of the ionic compounds formed by the combination of the following pairs of elements: (i) K.F (ii ) Mg,O (iii) Na,S (iv) Al,P (v) Ba .Br (vi) Al,F

Write the balanced equations for the reactions of the following compounds with water: (i) AI_(4)C_(3) (ii) CaNCN (iii) BF_(3) (iv) NCI_(3) (v) XeF_(4)

Write the balanced equations for the reactions of the following compounds with water: (i) AI_(4)C_(3) (ii) CaNCN (iii) BF_(3) (iv) NCI_(3) (v) XeF_(4)

(i)A black coloured compound (B) is formed on passing H_(2)S through the solution of a compound (A) in NH_(4)OH (ii) (B) on treatment with HCl and potassium chlorate or aquaregia gives (A) (iii) (A) on treatment with KCN gives a buff/reddish-brown coloured precipitate which dissolves in excess of this reagent forming a compound ( C) . (iv)The compound ( C) is changed into a compound (D) when its aqueous solution is boiled in air. (v)The solution of (A) was treated with excess of NaHCO_(3) & then with bromine water. On cooling & shaking for some time, a green colour of compound (E) is formed.No change is observed on heating. Identify (A) to (E) and give chemical equations.

Which of the following compound will give blood red colour while doing the Lassaigne's test for N?