Advertisements
Advertisements
Question
Answer the following question.
2 g of silver chloride is taken in a china dish and the china dish is placed in sunlight for some time. What will be your observation in this case? Write the chemical reaction involved in the form of a balanced chemical equation. Identify the type of chemical reaction.
Solution
When 2 g of silver chloride, AgCl, is kept in sunlight then AgCl breaks down into Ag and C12. The color of the silver chloride turns to grey.
The following change can be represented by the chemical reactions as:
\[\ce{2AgCl(s)->[sunlight] 2Ag(s) + Cl2(g)}\].
This type of reaction is an example of a photochemical decomposition reaction.
APPEARS IN
RELATED QUESTIONS
Write the balanced chemical equation for the following and identify the type of reaction.
\[\ce{Zinc carbonate(s) -> Zinc oxide(s) + Carbon dioxide(g)}\]
What type of reaction is represented by the following equation?
NH4 CI → NH3 + HCI
What type of chemical reaction take place when electricity is passed through water?
Which of the following can be decomposed by the action of light?
(a) NaCl
(b) KCl
(c) AgCl
(d) CuCl
Explain the following type of chemical reaction, giving two examples for it:
Decomposition reaction
How will you obtain Nitrogen dioxide from lead nitrate.
Also give balanced equations for the reactions
What are thermal decomposition reactions ? Explain with an example.
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.
A student wants to study a decomposition reaction by taking ferrous sulphate crystals. Write two precautions he must observe while performing the experiment.
Give the ratio in which hydrogen and oxygen are present in water by volume.
