Question Category: Analytical Chemistry

Sodium hydroxide solution is added first in a small amount,

(i) The colour of the precipitate when NaOH is added in a small quantity are...

From the list of substances given — Ammonium sulphate, Lead

Ferrous sulphate gives a dirty green precipitate with sodium hydroxide.

Write a balanced equation for the reaction between aluminium oxide

Al2O3 + 2NaOH ⟶ 2NaAlO2 + H2O

Give one test to distinguish between the following: Iron

Ammonium hydroxide can be used to distinguish between the two. Iron [III] chloride soln. forms...

The salt which in soln. gives a pale green precipitate

Iron [II] sulphate gives a pale green precipitate with NaOH solution and a white ppt. with...

Find the odd one with reasons [valency is not a

Mg(OH)2 Reason All others are amphoteric hydroxides.

Identity the substance P based on the information given :

Ferric chloride [Fe(Cl)3]

Give an equation for —
1. ZnO reacts with

ZnO + 2NaOH ⟶ Na2ZnO2 + H2O Zn(NO3)2 + 2NaOH ⟶ Zn(OH)2 + 2NaNO3

Select the correct answer from A, B, C —

A: Sodium hydroxide soln

Hydroxide of this metal is soluble in NaOH solution.

Lead