IIT-JEE 1988 | Periodic Table & Periodicity Question 21 | Chemistry

IIT-JEE 1988

MCQ (Single Correct Answer)

-0.25

The first ionisation potential of Na, Mg, Al and Si are in the order

Na < Mg > Al < Si

Na > Mg > Al > Si

Na < Mg < Al < Si

Na > Mg > Al < Si

IIT-JEE 1987

MCQ (Single Correct Answer)

-0.25

The first ionisation potential in electron volts of nitrogen and oxygen atoms are respectively given by

14.6, 13.6

13.6, 14.6

13.6, 13.6

14.6, 14.6

IIT-JEE 1987

MCQ (Single Correct Answer)

-0.25

Atomic radii of fluorine and neon in Angstrom units are respectively given by

0.72, 1.60

1.60, 1.60

0.72, 0.72

None of these values

IIT-JEE 1987

MCQ (Single Correct Answer)

-0.25

The electronegativity of the following elements increases in the order

C, N, Si, P

N, Si, C, P

Si, P, C, N

P, Si, N, C

JEE Advanced Subjects