Tests for Aluminium(III) Ion

IMPORTANT

Tests for Aluminium(III) Ion: Overview

This topic covers concepts, such as, Precipitation of Aluminium(III) Ion with Ammonium Hydroxide in Presence of Ammonium Chloride, Lake Test for Aluminium(III) Ion, Analysis of Group-III Radicals and Sodium Hydroxide Test for Aluminium(III) Ion etc.

Important Questions on Tests for Aluminium(III) Ion

EASY
IMPORTANT

Write the chemical reaction for the product formed by the reaction of Al3+ with sodium hydroxide.

HARD
IMPORTANT

Explain the sodium hydroxide test for aluminium (III) ion.

HARD
IMPORTANT

What will be the action of sodium hydroxide on ammonium salt?

EASY
IMPORTANT

The colour of the product formed by the reaction of Al3+ with sodium hydroxide solution is:

EASY
IMPORTANT

The product formed by the reaction of Al3+ with excess sodium hydroxide is soluble.

EASY
IMPORTANT

Name the product formed by the reaction of Al3+ with sodium hydroxide.

EASY
IMPORTANT

 Al3+ salts react with ammonium hydroxide in presence of ammonium chloride to give a black precipitate of aluminium chloride. 

EASY
IMPORTANT

What will be the colour of the precipitate formed when  AlIII ions react with ammonium hydroxide in presence of ammonium chloride. 

MEDIUM
IMPORTANT

Write the chemical equation for the reaction of AlIII ions with ammonium hydroxide in presence of ammonium chloride. 

MEDIUM
IMPORTANT

What happens when AlIII ions react with ammonium hydroxide in presence of ammonium chloride. 

MEDIUM
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The addition of an excess of ammonium chloride ammonia buffer to a solution containing nitrates of Al, Bi, Mg and Zn will precipitate hydroxides of

MEDIUM
IMPORTANT

Ethers get oxidised in the presence of air after a long time.The presence of peroxide ion can be detected ferrous ions followd by the addition of-

HARD
IMPORTANT

Few drops of HNO3 added to group II before proceeding to group order to:

MEDIUM
IMPORTANT

On addition of aqueous NaOH to a salt solution, a white gelatinous precipitate is formed, which dissolves in excess alkali. The salt solution contains

EASY
IMPORTANT

The reagents NH4Cl and aqueous NH3 will precipitate

MEDIUM
IMPORTANT

In the group III radicals, in place of NH4Cl which of the following can be used

MEDIUM
IMPORTANT

Which of the following pairs would be expected to form precipitate when solution are mixed

MEDIUM
IMPORTANT

Conc. HNO3 is added before proceeding to test for group III members. This is to

EASY
IMPORTANT

Which one of the following metals will give blue ash when its salt is heated with Na2CO3 solid and CoNO32 on a charcoal piece

EASY
IMPORTANT

A compound which does not give a positive test in Lassaigne's test for nitrogen is: