Allied solutions

Allied solutions

Grade 8

Chemical Reactions | Exercise

Question 11

Q11) Give two examples each of the following oxides - (a) Acidic oxides (b) Basic oxides (c) Amphoteric oxides (d) Neutral oxides. State which of the following oxides i.e. (a) to (d) (i) React with water to give a base (ii) React with a base to give salt & water (iii) React with acids & bases to give salt & water.

Solution:

Acidic oxides: SO_2,CO_2,NO_2

Basic oxides:Na_2O,K_2O,CaO

Amphoteric oxides: ZnO,PbO,Al_2O_3

Neutral oxides: NO,CO,N_2O

  1. Basic oxides react with water to give bases.
  2. Acidic oxide reacts with a base to give salt and water
  3. Amphoteric oxide reacts with acids and bases to give salt and water.

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Question 11

Q11) Give two examples each of the following oxides - (a) Acidic oxides (b) Basic oxides (c) Amphoteric oxides (d) Neutral oxides. State which of the following oxides i.e. (a) to (d) (i) React with water to give a base (ii) React with a base to give salt & water (iii) React with acids & bases to give salt & water.

Solution:

Acidic oxides: SO_2,CO_2,NO_2

Basic oxides:Na_2O,K_2O,CaO

Amphoteric oxides: ZnO,PbO,Al_2O_3

Neutral oxides: NO,CO,N_2O

  1. Basic oxides react with water to give bases.
  2. Acidic oxide reacts with a base to give salt and water
  3. Amphoteric oxide reacts with acids and bases to give salt and water.

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