(English Medium) ICSE Class 10 - CISCE Question Bank Solutions for Chemistry

 Choose the method of preparation of the following salts, from the methods given in the list:
[List :  A. Neutralization B. Precipitation  C. Direct combination D. Substitution ]
(i) Lead chloride
(ii) Iron (II) sulphate
(iii) Sodium nitrate

(iv) Iron (III) chloride 

 Identify the substance underlined: 
The dilute acid which is an oxidizing agent. 

Explain hydronium ion. Write the ionization of sulphuric acid showing the formation of hydronium ion.

How many salts can be obtained from ortho phosphoric acid? Is there any difference in the salts formed by the acid?

Give the preparation of the salt given in the left column by matching with the methods given in the right column. Write balanced equations for each preparation.

State how would you prepare copper (II) oxide from
Copper nitrate

State how would you prepare copper (II) oxide from
Copper Carbonate

State how would you prepare copper (II) oxide from
copper sulphate

Give equation to prepare the following as directed
MgCO₃ from MgCl₂

Give equation to prepare the following as directed
PbCO₃ from Pb(NO₃)

Give equation to prepare the following as directed
NaHCO₃ from Na₂CO₃

From the list of the substances given, name the substances which you would use to prepare each of the following salts:
List of substances: Copper, lead, sodium, zinc, copper oxide, lead carbonate, sodium carbonate solution, dilute hydrochloric acid, dilute nitric acid and dilute sulphuric acid.
Salts: (a) zinc sulphate (b) copper sulphate (c) sodium sulphate (d) lead sulphate.

Define the following term:

Neutralisation

Some methods used for the laboratory preparation of salts are:
(a) Metal + acid
(b) Carbonate + acid
(c) Precipitation
(d) Direct combination
(e) Titration
Copy and complete the following table : 

Choosing only substances from the list given in the box below, write equations for the reactions which you would use in the laboratory to obtain:
(i) Sodium sulphate
(ii) Copper sulphate
(iii) Iron (II) sulphate
(iv) Zinc carbonate

Write the balanced equation for the preparation of the following compounds, starting from iron and using other substance: Iron (II) chloride

Write the balanced equation for the preparation of the following compounds, starting from iron and other substance:
Iron (II) sulphate

Write the balanced equation for the preparation of the following compounds, starting from iron and other substance:
Iron (II) sulphide

Write the equation for the laboratory preparation of sodium sulphate using dilute sulphuric acid.

Write the balanced equation for the preparation of the following compounds, starting from iron and other substance:
lead sulphate using dilute sulphuric acid.