Question : Which of the following statements is correct?

Option 1: Atomic radius increases across a period and decreases down a group in the periodic table.

Option 2: Atomic radius decreases across a period and increases down a group in the periodic table.

Option 3: Atomic radius decreases across a period and down a group in the periodic table.

Option 4: Atomic radius increases across a period and increases down a group in the periodic table.

Question : Solubility of gases in liquids ______ with a decrease in temperature.

Option 1: remains constant

Option 2: first decreases and then increases

Option 3: increases

Option 4: decreases

Question : What will happen to the level of water in a vessel when a piece of ice floating in it melts?

Option 1: Decreases

Option 2: Increases

Option 3: Remains same

Option 4: First increases and then decreases

Question : Which of the following is not true when the interest rate in the economy goes up?

Option 1: Saving increases

Option 2: Lending decreases

Option 3: Cost of production increases

Option 4: Return on capital increases

Question : Electrical conductance through metals is called electronic conductance and it ______.

Option 1: does not depend on the temperature

Option 2: decreases with an increase in temperature

Option 3: increases with an increase in temperature

Option 4: decreases with a decrease in temperature