Chemistry [1 Mark Question Answer]

Write the equation for the following reaction :
Zinc oxide is treated with sodium hydroxide solution.

Give one chemical test to distinguish between the following pair of compound:
Iron (II) chloride solution and iron (III) chloride solution.

Give one chemical test to distinguish between the following pair of compound:
Zinc sulphate solution and Zinc chloride solution.

Identify the substance Q based on the information given below:
The pale green solid R turns reddish brown on heating. Its aqueous solution gives a white precipitate with barium chloride solution. The precipitate is insoluble in mineral acids.

Identify the substance Q based on the information given below:
The white crystalline solid Q is soluble in water. It liberates a pungent smelling gas when heated with sodium hydroxide solution.

Identify the substance P based on the information given below:
The deliquescent salt P, turns yellow on dissolving in water, and gives a reddish brown precipitate with sodium hydroxide solution.

State what do you observe when:
Sulphur burns.

State what do you observe when:
Ethane is bubbled through a solution of bromine in tetrachloromethane (carbon tetra chloride).

State what do you observe when:
Lead nitrate and sodium chloride are mixed.

State what do you observe when:
Ammonium hydroxide is added to iron (III) sulphate solution.

State what do you observe when:
Neutral litmus solution is added to alkaline solution

Write balanced equation for the following reaction:
Sulphur dioxide and sodium hydroxide solution
(Give the equation for the formation of the normal salt)

Write balanced equation for the following reaction:
Zinc and sodium hydroxide solution

Write balanced equation for the following reaction:
Chlorine and cold dilute sodium hydroxide solution.

Write balanced equation for the following reaction:
Iron(II) chloride solution with sodium hydroxide solution.

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

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

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

Name : A compound containing zinc in the anion.

Name : A white, insoluble oxide that dissolves when fused with caustic soda or potash.

Name : A yellow monoxide that dissolves in hot and concentrated caustic alkali.

Name the chloride of a metal which is soluble in excess of ammonium hydroxide.

Give two examples of amphoteric hydroxides.

Write the colour of the following salt : Calcium salts.

Write the colour of the following salt : Ferric salts.

Write the colour of the following salt : Ferrous salts.

Write the colour of the following salt : Aluminium salts.

Write the colour of the following salt : Cupric salts.

Write the colour of the following salts: Cuprous salts.

Name: A coloured metallic oxide which dissolves in alkalis to yield colourless solutions.

Name: Two bases which are not alkalis but dissolve in strong alkalis.

Name: Two coloured ions

Name: A weak alkali.

Name: A strong alkali

Name: A metallic oxide soluble in excess of caustic soda solution.