Standard Enthalpy Changes Multiple Choice Questions (MCQ) PDF - 24

MCQ 116: The standard enthalpy change of combustion occurs when 1 mol of substance is burnt more than

1. nitrogen
2. oxygen
3. carbon dioxide
4. helium

MCQ 117: In electrolysis, the very high current is passed which is equal to

1. 40,000 A
2. 20,000 A
3. 30,000 A
4. 10,000 A

MCQ 118: The consumption of a typical smelting plant of aluminum is as much as electricity consumed by

1. nuclear plant
2. small town
3. electrolytic cell
4. steel and iron industry

MCQ 119: Nitrogen gas prevents the chance of explosion in case of crude oil contact with the air because it is

1. reactive
2. non-reactive
3. soluble
4. covalently bonded

MCQ 120: The barium metal is highly reactive if it is stored in

1. gas
2. oil
3. water
4. petrol