Advertisements
Advertisements
प्रश्न
Define the following type of chemical change or reaction with a suitable example.
Double decomposition reaction
Advertisements
उत्तर
Double decomposition reaction:
“Those reactions in which two compounds react by an exchange of ions to form two new compounds are called double displacement reactions”.
\[\ce{\underset{\text{silver nitrate}}{AgNO3} + \underset{\text{sodium chloride}}{NaCl}->\underset{\text{white ppt. (silver chloride)}}{AgCl} + \underset{\text{sodium nitrate}}{NaNO3}}\]
APPEARS IN
संबंधित प्रश्न
The reaction of iron nail with copper sulphate solution is ______ reaction.
Explain, giving one example of the following chemical change:
Thermal dissociation
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.
CuO+H2→ Cu+ H2O
Multiple choice:
The reaction BaCl2(aq) + H2SO4(aq) → BaSO4(s) + 2HCl(aq) is
Give a balanced equation for the following reaction of synthesis involving the formation of:
An alkali – from a basic oxide – sodium oxide
Give a balanced equation for thermal decomposition of ammonium dichromate
Name a metallic oxide which on thermal decomposition is reduced to metal.
