1
IIT-JEE 1989
MCQ (Single Correct Answer)
+1
-0.25
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)
+1
-0.25
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)
+1
-0.25
The first ionisation potential in electron volts of nitrogen and oxygen atoms are respectively given by
A
14.6, 13.6
B
13.6, 14.6
C
13.6, 13.6
D
14.6, 14.6
4
IIT-JEE 1987
MCQ (Single Correct Answer)
+1
-0.25
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
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