Give Reason : Potassium Ferrocyanide is stored in dark coloured bottles and kept away from sunlight.

Answer -

1. Potassium Ferrocyanide gets decomposed when exposed to bright light.

2. The dark colours of the bottles absorb a lot of energy from the light passing through it.

3. If stored in dark – coloured bottles, it does not get enough light energy to decompose.

4.  Hence, potassium Ferrocyanide is stored in dark – coloured bottles and kept away from sunlight to prevent its decomposition.

Comments

Post a Comment

Popular posts from this blog

What do you understand by the term “Redox Reactions”? Explain with one example.

Answer - 1.     When oxidation and reduction take place simultaneously in a given chemical reaction, it is called redox reaction or oxidation-reduction. 2.     No oxidation can take place without reduction and there is no reduction without oxidation at the same time. 3.   When carbon monoxide is passed over heated ferric oxide, carbon monoxide gains oxygen (i.e. gets oxidized) to form carbon dioxide. At the same time, iron oxide gets reduced to metallic iron by the loss of oxygen. 4.     Fe 2 O 3  + CO → 2Fe +2CO 2  ↑
Read more

Give Reason : Physical states of reactants and products are mentioned while writing a chemical equation.

Answer - 1.  To make a chemical equation more informative, the physical states of the reactants and products are mentioned along with their chemical formulae. 2.   The gaseous, liquid, aqueous and solid states of reactants and products are represented by the notations (g), (l), (aq) and (s) respectively. 3.   The word aqueous (aq) is written if the reactant or product is present as a solution in water
Read more