Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test General Science Chemistry Chemical Reaction
Which of the following pairs will give displacement reactions?
1
AgNO3 solution and copper metal
2
MgCl2 solution and aluminum metal
3
FeSO4 solution and silver metal
4
More than one of the above
5
None of the above