Question

Match the following

Group-A Group-B

1.  2Mg  +O2  →  2Mgo a)  Redox  reaction

2.  2CaCo3 →  Cao  +  Co2 b)  Double  displacement

3.  Zn  +2Hcl  →  Zncl2  +  H2 c)  Displacement

4.  Na2  So4+Bacl2  →Baso4  +2Nacl d)  Decomposition

5.  2Fe2  O3  +3c  →  4Fe  +  3Co2 e)  Combination

f)  Rancidity. 

Answer 1

1-e combintion
2-d decomposition
3-c displacement
4-b double displacement
5-a redox

Answer 2

1)e
2)d
3)c
4)b
5)c
oxygen is displaced from iron to form carbon dioxide