Chemical Reactions and Equations — Science STD 10 — Question
CBSE BoardEnglish MediumSTD 10ScienceChemical Reactions and Equations2 Marks
Question
What is the difference between displacement and double displacement reactions? Write equations for these reactions.
✓
Answer
In a displacement reaction, a more reactive element replaces a less reactive element from a compound.
For Example: $CuSO _4( aq )+ Zn ( s ) \rightarrow ZnSO _4( aq )+ Cu ( s )$
In a double displacement reaction, two atoms or a group of atoms switch places to form new compounds.
For Example: $Na _2 SO _4( aq )+ BaCl _2( aq ) \rightarrow BaSO _4(s)+2 NaCl ( aq )$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.