$Fe _{2} O _{3}+2 Al \rightarrow Al _{2} O _{3}+2 Fe$
The above reaction is an example of a
combination reaction.
displacement reaction.
decomposition reaction.
double displacement reaction.
Why do we apply paint on iron articles ?
Why is the amount of gas collected in one of the test tubes in image double of the amount collected in the other ? Name this gas.
In the refining of silver, the recovery of silver from silver nitrate solution involved displacement by copper metal. Write down the reaction involved.
Write one equation each for decomposition reactions where energy is supplied in the form of heat, light or electricity.
A shiny brown coloured element $‘X’$ on heating in air becomes black in colour. Name the element $‘X’$ and the black coloured compound formed.