Chemistry assignment of class 10
Answers
1. Displacement reaction because zinc displaces Cu from its oxide. Zinc is more reactive than copper.
2.Double displacement reaction because here exchange of ions Cl¹- ion and [(NO)3]¹+ ions takes place between two element.
3.It is also double displacement reaction because Cl¹- ions and [(SO)4]¹+ ions are getting exchanged.
4.It is decomposition reaction because Pb(NO3)2 is getting heated to form more than two products.
5.It is displacement reaction in which aluminum displaces hydrogen from its compound.
6.It is displacement reaction
7.It is combination reaction in which two compounds Zn and O2 are getting combined to form ZnO.
8.It is combination reaction
9.It is decomposition reaction
10.It is displacement reaction
11.It is Decomposition reaction
12.It is decomposition reaction
13. It is double displacement reaction
14.It is Displacement reaction
15.It is decomposition reaction
16.It is displacement reaction
17.It is decomposition reaction
18.It is decomposition reaction
19.It is combination reaction
20.It is combination reaction