Answer:
So They want you to tick the Correct Option corresponding to each Reaction.
The answers are below. So Tick correctly!
The first is a SINGLE REPLACEMENT REACTION.
The second is a COMBUSTION REACTION.
The third is a DOUBLE REPLACEMENT REACTION.
The fourth is a SYNTHESIS REACTION. Examples are C + O2 = CO2, CaO + H2O = Ca(OH)2.
The fifth is a DECOMPOSITION REACTION. Another example is CaCO3 === CaO + CO2
The sixth is also a DOUBLE REPLACEMENT REACTION.