ICSE − Q & A

HCl dissolves in water forming HCl acid. Give 2 chemical tests to prove it is acidic without using indicators.

All ammonium salts are soluble in nature. Give another property of Ammonium salts which they have in common.

Chalk hills dissolve in rain water.

Sodium hydroxide bottles have glass stoppers.

Chlorine is passed through Potassium Bromide solution. Give equations.

A metal which forms an alkaline solution with water.

What do you observe when Zinc Oxide is heated?

How will you distingiush Baking soda and Washing soda?

Name the non-metal that forms two compounds with chlorine. What are they?

Compounds formed when chlorine reacts with water.

Atomicity of chlorine? How to find atomicity?

The necessary conditions for direct combination of sulphur dioxide and chlorine forming sulphuryl chloride?

The property of Sulphur Dioxide that causes it to decolourize KMnO4 soln.

Name the acid salt in baking soda.

Name the reagent used to distinguish between ethane and ethene?

Name the upper region of the blast furnace and give equations.

A metal whose nitrate does not give NO2 on heating.

A carbonate that does not decompose on heating.

An efflorescent substance (in Name the following) cannot give formula.

Metal oxide that can react with bot acid as well as alkali (i.e is amphoteric) is ?

Differences between Sodium atom and Sodium ion.

Name the Ammonium compound in dry cells.

Piece of (i) Iron and (ii) Zinc is added to CuSO4. What do you observe?

Tap water is not used for preparing Silver Nitrate solution. Why?

Chlorine is not used for bleaching silk. Why?

Why conc H2SO4 is kept in airtight bottles?

The nitrate that does not leave any reside on heating.

From Sulphur, Carbon, Phosphorus, Chlorine, choose the one that gives both an acidic oxide as well as a neutral oxide.

From Mg, Pb, Ag, Cu, choose the carbonate of the one that gives Oxygen as well as Carbon Dioxide on heating.

Gas product on heating Sodium Nitrate.

An insoluble sulphate

A metal whose carbonate gives oxygen on heating.