ICSE CHEMISTRY QUESTIONS ON CHEMICAL BONDING - 5

ICSE CHEMISTRY CHEMICAL BONDING - 5

Practice questions ICSE Chemistry

Answer the following questions

1.      A and B are two elements with valence electrons 2 and 7 respectively. What type of bonding is possible between them and write the formula of the compound.

2.      X and Y are two elements. If one atom of X donates three electrons to one atom of  Y then write the formula of that compound. What is the change that X undergoes?

3.      If a metal P forms a compound with an element Q which consists of diatomic molecules and the formula of the compound is PQ₃. Write the balanced equation for the reaction between P and Q.

4.      X and Y are two elements having 4 and 7 valence electrons respectively. Show the formation of the compound between X and Y with electron dot representation.

5.      If Hydrogen atoms combine with a non metal having 5 valence electrons. State the nature of and the number of bonds. Draw the electron dot structure of the compound.

6.      An element X consists of molecules. What type of bonding is present in the particles of  X ?

7.      A, B and C are the elements with atomic numbers 9,11, and 13. State the type of  bonding between A and C. Write the formula of the compound between A and B.

8.      If X belongs to Group 2 and Y is a non metal with 7 valence electrons. Show the formation of the compound between X and Y with electron dot structure.

9.      P and Q have 6 and 7 valence electrons respectively. State the nature of the bond and Draw electron dot structure of the compound.

10.  Differentiate between

i)           Electrovalent compound and Covalent compound

ii)         Polar covalent and non polar covalent compound.

iii)       Ionization and Dissociation

11.  What is meant by lone pair of electrons?

12.  Lone pair effect results in the formation of _______________ bond.

13.  State the nature of the bonds in Ammonium chloride.

14.  State the number of lone pairs in water and Ammonia molecule.

15.  Draw electron dot structures of the following:

i) Water                ii) Ammonia                iii) Ammonium ion                  iv) CCl₄

1.      A, B, C and D are the elements with valence electrons 7,2, 4 and 1 respectively. Answer the following:

i)           Nature of the bonding between C and A.

ii)         Formula of the compound between B and A.

iii)       Nature of the bonding between D and A. and draw the electron dot structure of that compound.

iv)       If A is a non metal containing diatomic molecule then write balanced equation for the reaction between A and B.