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

 Distinguish between the following pairs of compounds using the reagent given in the bracket.
Ferrous sulphate solution and ferric sulphate solution. (Using sodium hydroxide solution) 

Distinguish between the following pairs of compounds using the reagent given in the bracket.
Dilute hydrochloric acid and dilute sulphuric acid. (Using lead nitrate solution) 

Complete the following equations : 
  S + conc.HNO₃ → 

 Complete the following equations :
 C + cons. H₂SO₄   

 Complete the following equations : 
3 Cu + dil. HNO3 

 Match the alloys given in column I to the uses given in column II : 

State differences between the properties of ionic compounds and covalent compounds.

In term of electron transfer, define Oxidation

In term of electron transfer, define

Reduction

Explain the following briefly:
Helium does not form He₂  molecule

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

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

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

Separate the following compounds into three categories - ionic, polar and covalent compounds; N₂, NH₄Cl, NH₃, NO, NH₄NO₃, NCl₃.

Fill in the blanks.
The electrovalent bond or ionic bond is called as _____ bond

Fill in the blank.
___________ single covalent bonds are formed between the carbon and chlorine atoms.

Element X is a metal with a valency 2. Element Y is a non metal with a valency 3.
(a) Write equations to show how X and Y form ions.
(b) If Y is a diatomic gas, write the equation for the direct combination of X and Y to form a compound.

Match the column A with Column B.

Among the following compounds identify the compound that has all three bonds (ionic, covalent and coordinate bond).

A Compound 'X' consists of only molecules. Hence 'X' will have