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प्रश्न
Name a metallic oxide which on thermal decomposition is reduced to metal.
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उत्तर
Metal oxide on thermal decomposition reduces to metal:
\[\ce{\underset{\text{mercury (II) oxide}}{2HgO}->[\Delta]\underset{\text{metal mercury}}{2Hg} + O2}\]
\[\ce{2Ag2O->[\Delta]4Ag + O2}\]
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संबंधित प्रश्न
Explain, giving one example of the following chemical changes:
Double decomposition
State the type of reactions for the following represent and balance the ones that are not balanced.
2HgO → 2Hg + O2
State the type of reactions for the following represent and balance the ones that are not balanced.
2KClO3→ 2KCl + 3O2
State the type of reactions for the following represent and balance the ones that are not balanced.
2H2O2→ 2H2O + O2
State the type of reactions for the following represent and balance the ones that are not balanced.
PbO + 2HNO3→ Pb(NO3) + 2H2O
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 |
What is a double displacement reaction?
What is a decomposition reaction?
Give a balanced equation for the following reaction of synthesis involving the formation of:
A salt – from a trivalent metal and a coloured gas.
Give a balanced equation for the following type of reaction:
A decomposition reaction of a salt which leaves behind a silvery metal.
