A displacement reaction is the one when a more reactive substance displaces a less reactive one from its salt solution whereas a double displacement reaction is the one where a mutual exchange of ions happens between two compounds. In a displacement reaction, only a single displacement takes place whereas in the double displacement reaction, as the name suggests two displacement takes place between the molecules. Example:
Displacement reaction
Mg + 2HCl → MgCl2 + H2
Double displacement reaction
2KBr + BaI2 → 2KI + BaBr2
Answered by Vishal kumar | 1 year agoProvide Some Important MCQ Questions for Class 10 Science Chemical Reactions and Equations with Answers?
Explain the following terms with one example each.
(a) Corrosion
(b) Rancidity Solution:
Oil and Fat containing food items are flushed with Nitrogen. Why?
Why do we apply paint on iron articles?
A shiny brown coloured element ‘X’ on heating in the air becomes black in colour. Name the element ‘X’ and the black coloured compound formed.