Advertisements
Advertisements
प्रश्न
State the change in colour observed in following case mentioning the reason:
Silver chloride is exposed to sunlight.
What happens when silver chloride is exposed to sunlight? Write a chemical equation for this reaction. Also give one use of such a reaction.
उत्तर
Photolytic Decomposition is the process by which silver chloride breaks down into silver and chlorine when exposed to sunlight. Silver metal and yellowish chlorine gas are the byproducts of the breakdown of white silver chloride.
The chemical reaction is given as follows:
\[\ce{2AgCl(s) ->[Light][Decomposition]2AgCl(s) + Cl2(g)}\]
संबंधित प्रश्न
Rewrite the following statements by selecting the correct options:
\[\ce{CaCO3 ->[\Delta] CaO + CO2 ^}\] is a __________ reaction.
What type of reaction is represented by the digestion of food in our body?
What type of chemical reaction take place when lime-stone is heated?
What type of chemical reaction take place when electricity is passed through water?
What is the colour of ferrous sulphate crystals? How does this colour change after heating?
When a green iron salt is heated strongly, its colour finally changes to brown and odour of burning sulphur is given out.
(a) Name the iron salt.
(b) Name the type of reaction that takes place during the heating of iron salt.
(c) Write a chemical equation for the reaction involved.
Explain the following type of chemical reaction, giving two examples for it:
Decomposition reaction
Study the following figure and answer questions.
a) After heating Calcium carbonate, which gas is formed in a test tube?
b) When we pass this gas through limewater what change, did you observe?
c) Write down the chemical reaction showing the product formation after heating the Calcium carbonate.
The reaction of calcium carbonate, with freshly prepared lime water, is shown below:
Answer the questions with the help of a diagram:
- What type of reaction does calcium carbonate undergoes?
- What change in colour is observed in lime?
- Write the chemical equation.
Complete the following reaction:
\[\ce{C_12H_22O11->[Heat]}\] ______ + ______.
