What would you observe when zinc is added to a solution of iron (II) sulphate? Write the chemical reaction that takes place.

>

>

Chapter 3

NCERT

Class 10

Science

Solutions

1. (i) Write the electron-dot structures for sodium, oxygen and magnesium. (ii) Show the formation of Na2O and MgO by the transfer of electrons. (iii) What are the ions present in these compounds?

Promo GIF

Question:

(i) Write the electron-dot structures for sodium, oxygen and magnesium.

(ii) Show the formation of Na₂O and MgO by the transfer of electrons.

(iii) What are the ions present in these compounds?

Answer:

(i)

(ii)

(iii) In Na₂O, Na⁺ and O^2– ions are present.

In MgO, Mg²⁺ and O^2– ions are present.

Buy Latest Books

Teacher's Corner