1
JEE Main 2021 (Online) 27th July Morning Shift
Numerical
+4
-1
The difference between bond orders of CO and NO$$^ \oplus$$ is $${x \over 2}$$ where x = _____________. (Round off to the Nearest Integer)
2
JEE Main 2021 (Online) 20th July Morning Shift
Numerical
+4
-1
The number of lone pairs of electrons on the central I atom in I$$_3^ -$$ is ____________.
3
JEE Main 2021 (Online) 18th March Evening Shift
Numerical
+4
-1
The number of species below that have two lone pairs of electrons in their central atom is _________. (Round off to the Nearest Integer).

SF4, BF$$_4^ -$$, ClF3, AsF3, PCl5, BrF5, XeF4, SF6
4
JEE Main 2021 (Online) 18th March Morning Shift
Numerical
+4
-1
AX is a covalent diatomic molecule where A and X are second row elements of periodic table. Based on Molecular orbital theory, the bond order of AX is 2.5. The total number of electrons in AX is __________. (Round off to the Nearest Integer).
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