Organic Chemistry — Chemistry STD 10 — Question

Name an orange colour solution which turns in green colour when sulphur dioxide gas is passed through it.

You are given a mixture of precipitated copper hydroxide and zinc hydroxide. Name a solvent which will dissolve:
Both copper hydroxide and zinc hydroxide

Give the name and formula of an ore of zinc.
Roasting of the ore

What happen when (Given balanced equation) :
Nitric acid is dissolved in large amount of water?

Give one example : A base which is not an alkali.

Name the ions furnished by bases in solution.

Write the balanced chemical equation for the following conversion:
Ammonium sulphate from ammonia and dilute sulphuric acid.

Name:
a nitrate of metal which on heating does not give nitrogen dioxide 

What type of bond is formed between two atoms, when the electronegative difference between them is zero ?

Give two examples of the following:
hydracids