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 : In a peridic table of elements on moving from left to right across a period ,the atomic radius

Option 1: Decreases

Option 2: Increases

Option 3: Remains un changed

Option 4: Does not follow a definite pattern

Question : The law of diminishing marginal utility states that:

Option 1: Marginal utility increases as consumption increases

Option 2: Total utility decreases as consumption increases

Option 3: Marginal utility decreases as consumption increases

Option 4: Total utility remains constant as consumption increases