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ICSE Class 10 Chemistry Question 4 of 20

Solved 2018 Question Paper ICSE Class 10 Chemistry — Question 1

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Question

Question 2(a)

(i) What do you understand by a lone pair of electrons?

(ii) Draw the electron dot diagram of Hydronium ion. (H=1; O=8)

Answer

(i) Lone pair of electrons are valence electrons that in a covalent bond are not shared with another atom.

(ii) Electron dot diagram of Hydronium ion is shown below:

Draw an electron dot diagram of the structure of hydronium ion. Chemical Bonding, Simplified Chemistry Dalal Solutions ICSE Class 10