Question : The purity of a metal can be determined with the help of

Option 1: Pascal's law

Option 2: Boyle's law

Option 3: Archimedes Principle

Option 4: Conservation of mass principle

Question : The direction of heat flow depends on____.

Option 1: density

Option 2: energy

Option 3: mass

Option 4: temperature

Question : What is the mass of one mole of a substance in grams is called?

Option 1: Nuclear mass

Option 2: Atomic mass

Option 3: Molar mass

Option 4: Molecular mass

Question : The first law of thermodynamics is simply the case of:

Option 1: Charle's law

Option 2: Newton's law

Option 3: The law of heat exchange

Option 4: The law of conservation of energy

Question : What was the main aim of the Kyoto Protocol?

Option 1: Conservation of wetlands

Option 2: Bio-diversity conservation

Option 3: Global warming

Option 4: Climate change