chemical reaction and equation class 10 mcq
Formation of ammonia is an example of
1. endothermic reaction
2. exothermic reaction
3. both (1) and (2)
4. none of these
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The bond energy required to break one mole of HCl is
1. 103 kcal
2. 104 kcal
3. 44 kcal
4. 300 kcal
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An example for naturally occurring endothermic reaction is
1. respiration
2. electrolysis of water
3. photosynthesis
4. none of these
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The energy required in breaking a mole of H-H bond is
1. 104 kcal
2.62 kcal
3.57.8 kcal
4. 10.3 kcal
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