Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test General Science Chemistry Chemical Reaction
Which of the following is NOT a double displacement reaction?
1
BaCl2 + H2SO4 → BaSO4 + 2HCl
2
Mg3N2 + 6H2O → 3Mg(OH)2 + 2NH3
3
CuSO4 + H2S → CuS + H2SO4
4
More than one of the above
5
None of the above