Question : The molecular mass of a gas is:

Option 1: twice its vapour pressure

Option 2: equal to its vapour pressure

Option 3: half its vapour pressure

Option 4: not related to its vapour pressure

Question : When iron rusts, its weight

Option 1: decreases

Option 2: increases

Option 3: remains the same

Option 4: first increases and then decreases

Question : The boiling point of water depends upon the:

Option 1: atmospheric pressure

Option 2: volume

Option 3: density

Option 4: mass

Question : A real gas can act as an ideal gas in:

Option 1: high pressure and low temperature

Option 2: low pressure and high temperature

Option 3: high pressure and high temperature

Option 4: low pressure and loe temperature

Question : Which of the following is correct about cold blooded animals?

Option 1: Their blood remains cold all the time

Option 2: Their body temperature changes in accordance with the atmosphere

Option 3: Their body temperature remains constant all the time

Option 4: They kill all the animals they come across