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1
JEE Main 2018 (Online) 16th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following conversions involves change in both shape and hybridisation ?
A
NH3 $$ \to $$ NH4+
B
CH4 $$ \to $$ C2H6
C
H2O $$ \to $$ H3O+
D
BF3 $$ \to $$ BF4$$-$$
2
JEE Main 2018 (Offline)
MCQ (Single Correct Answer)
+4
-1
Change Language
Total number of lone pair of electrons in $${\rm I}_3^ - $$ ion is
A
3
B
9
C
6
D
12
3
JEE Main 2018 (Offline)
MCQ (Single Correct Answer)
+4
-1
Change Language
According to molecular orbital theory, which of the following will not be a viable molecule?
A
$${\rm H}e_2^{2 + }$$
B
$${\rm H}e_2^{ + }$$
C
$${\rm H}_2^{- }$$
D
$${\rm H}_2^{2 - }$$
4
JEE Main 2018 (Offline)
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following compounds contain(s) no covalent bond(s)? KCl, PH3, O2, B2H6, H2SO4
A
KCl, B2H6
B
KCl, B2H6, PH3
C
KCl, H2SO4
D
KCl
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