Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test General Science Chemistry Chemical Bond and Molecular Structure
Which among the following is an exothermic reaction?
1
Decomposition of ferrous sulphate
2
Nuclear explosion
3
Melting ice cubes
4
More than one of the above
5
None of the above