1

IIT-JEE 1989

MCQ (Single Correct Answer)
Which one of the following is the smallest in size?
A
N3-
B
O2-
C
F-
D
Na+
2

IIT-JEE 1988

MCQ (Single Correct Answer)
The first ionisation potential of Na, Mg, Al and Si are in the order
A
Na < Mg > Al < Si
B
Na > Mg > Al > Si
C
Na < Mg < Al < Si
D
Na > Mg > Al < Si
3

IIT-JEE 1987

MCQ (Single Correct Answer)
The electronegativity of the following elements increases in the order
A
C, N, Si, P
B
N, Si, C, P
C
Si, P, C, N
D
P, Si, N, C
4

IIT-JEE 1987

MCQ (Single Correct Answer)
Atomic radii of fluorine and neon in Angstrom units are respectively given by
A
0.72, 1.60
B
1.60, 1.60
C
0.72, 0.72
D
None of these values

Joint Entrance Examination

JEE Advanced JEE Main

Graduate Aptitude Test in Engineering

GATE CSE GATE ECE GATE ME GATE PI GATE EE GATE CE GATE IN

Medical

NEET

CBSE

Class 12