1
IIT-JEE 1980
MCQ (Single Correct Answer)
+2
-0.5
Element X is strongly electropositive and element Y is strongly electronegative. Both are univalent. The compound formed would be
A
X+Y-
B
X-X+
C
X-Y
D
X $$\to$$ Y
2
IIT-JEE 1979
MCQ (Single Correct Answer)
+2
-0.5
The octet rule is not valid for the molecule
A
CO2
B
H2O
C
O2
D
CO
3
IIT-JEE 1979
MCQ (Single Correct Answer)
+2
-0.5
The compound which contains both ionic and covalent bonds is
A
CH4
B
H2
C
KCN
D
KCl
JEE Advanced Subjects