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1
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 ____________.
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2
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
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3
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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4
JEE Main 2021 (Online) 25th February Morning Slot
Numerical
+4
-1
Among the following, the number of halide(s) which is/are inert to hydrolysis is _________.

(A) BF3

(B) SiCl4

(C) PCl5

(D) SF6
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