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प्रश्न
Decomposition reactions can occur by sunlight.
Give two balanced reactions.
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उत्तर
Sunlight
Decomposition of silver chloride or silver bromide when exposed to sunlight. Silver chloride decomposes to give silver and chlorine whereas silver bromide gives silver and bromine. These reactions are used in black and white photography.
\[\ce{2AgCI(s) ->[Sunlight] 2Ag(s) + CI2(g)}\]
\[\ce{2AgBr(s) ->[Sunlight] 2Ag(s) + Br2(g)}\]
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संबंधित प्रश्न
State the type of reactions for the following represent and balance the ones that are not balanced.
2HgO → 2Hg + O2
Match the following:
|
a. Zn(s) + H2SO4(aq) → ZnSO4(aq) + H2(g) |
i. Photochemical decomposition |
|
b. \[\ce{2AgCI(s) ->[Sunlight] 2Ag(s) + CI2(g)}\] |
ii. Thermal decomposition |
|
c. \[\ce{2KCI ->[Electricity] 2K + CI2}\] |
iii. Displacement reaction |
|
d. \[\ce{2HgO(s) ->[\Delta] 2Hg(s) + O(g)}\] |
iv. Electrolytic decomposition |
State which of the substance given below evolve oxygen gas on thermal decomposition.
Ammonium dichromate
State which of the substance given below evolve oxygen gas on thermal decomposition.
Anhydrous copper sulphate
The reaction can be classified as:
State which of the following type, take place in the reaction is given below.
\[\ce{AgNO3 + HCl->AgCl + HNO3}\]
Define the following type of chemical change or reaction with a suitable example.
Displacement reaction or substitution reaction
Give a balanced equation for a direct combination reaction involving:
Two elements – one of which is a neutral gas and the other a yellow non-metal
Define the term – double decomposition – neutralization reaction.
Convert a soluble base to their respective soluble salts by neutralization reaction.
Give a balanced equation for the following type of reaction:
A direct combination reaction between phosphorus and neutral gas.
