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 : At the boiling point of liquids, its

Option 1: temperature increases

Option 2: atmospheric pressure increases

Option 3: temperature remains constant

Option 4: vapour pressure decreases

Question : If a speed of rotation of the earth increases, the weight of the body

Option 1:

Option 2:

Option 3:

Option 4:

Question : What happens to the atomic size as you go down the group?

Option 1: Triples

Option 2: Decreases

Option 3: Increases

Option 4: No change

Question : The law of demand states that:

Option 1: if the price of a good increases, the demand for that good decreases

Option 2: if the price of a good increases, the demand for that good increases

Option 3: if the price of a good increases, the quantity demanded of that good decreases

Option 4: if the price of a good increases, the quantity demanded of that good increases