1
JEE Main 2021 (Online) 18th March Evening Shift
Numerical
+4
-1
Change Language
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
Your input ____
2
JEE Main 2021 (Online) 18th March Morning Shift
Numerical
+4
-1
Change Language
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).
Your input ____
3
JEE Main 2021 (Online) 25th February Morning Shift
Numerical
+4
-1
Change Language
Among the following, the number of halide(s) which is/are inert to hydrolysis is _________.

(A) BF3

(B) SiCl4

(C) PCl5

(D) SF6
Your input ____
4
JEE Main 2020 (Online) 6th September Morning Slot
Numerical
+4
-1
Change Language
The number of Cl = O bonds in perchloric acid is, "________".
Your input ____
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