Name the Anion Present in the Following Compound: Compound D, When Warmed with Dilute Sulphuric Acid, Gives a Gas that Turns Acidified Dichromate Solution Green.

Name the anion present in the following compound:

Compound D, when warmed with dilute sulphuric acid, gives a gas that turns acidified dichromate solution green.

One Word/Term Answer

SO₃^2-

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State the conditions required for the given reaction to take place:

Any two conditions for the conversion of sulphur dioxide to sulphur trioxide

Give one equation to show the following properties of sulphuric acid:

Dehydrating property

Give one equation to show the following properties of sulphuric acid:

As a non-volatile acid

Name the products formed when hot and concentrated sulphuric acid reacts with Sulphur.

Give reason for the following:
Concentrated sulphuric acid should not be added to oxalic acid or formic acid in the open laboratory.

How are the following conversion brought about? Give equation and condition:
Sucrose to sugar charcoal.

Write balanced equation for the reaction between iron and dilute sulphuric acid.

Write balanced equation for the reaction of dilute sulphuric acid with the following:
Copper carbonate

State two observations when
A few crystals of KNO₃ are heated in a hard glass tube

State your observation of the following case:

When dilute hydrochloric acid is added to sodium carbonate crystals.