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प्रश्न
Complete the statement by filling in the blank with the correct word:
Decomposition of silver salts in the presence of sunlight is an example of _________.
विकल्प
double decomposition
photochemical decomposition
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उत्तर
Decomposition of silver salts in the presence of sunlight is an example of photochemical decomposition.
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संबंधित प्रश्न
What does one mean by exothermic reaction? Give example.
The white solid compound A decomposes quite rapidly on heating in the presence of a black substance X to form a solid compound B and a gas C. When an aqueous solution of compound B is reacted with silver nitrate solution, then a white precipitate of silver chloride is obtained along with potassium nitrate solution. Gas C does not burn itself but helps burn other things.
- What is compound A?
- What is compound B?
- What is gas C?
- What do you think is the black substance X? What is its function?
- What is the general name of substances like X?
State the change in colour observed in the following case, mentioning the reason:
Silver chloride is exposed to sunlight.
A metal salt MX when exposed to light splits up to form metal M and a gas X2. Metal M is used in making ornaments whereas gas X2 is used in making bleaching powder. The salt MX is itself used in black and white photography.
- What do you think metal M is?
- What could be gas X2?
- Name the metal salt MX.
- Name any two salt solutions which on mixing together can produce a precipitate of salt MX.
- What type of chemical reaction takes place when salt MX is exposed to light? Write the equation of the reaction.
Explain the following type of chemical reaction, giving two examples for it:
Decomposition reaction
Identify the type of following reaction :
Give a balanced equation for –
A white precipitate obtained during a double decomposition reaction involving a silver salt with sodium salt.
Differentiate between the following:
Thermal decomposition and thermal dissociation.
When SO2 gas is passed through a saturated solution of H2S, which of the following reaction occurs?
Write one equation for the decomposition reaction where energy is supplied in the form of light.
