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1
JEE Main 2021 (Online) 22th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Given below are the statements about diborane

(a) Diborane is prepared by the oxidation of NaBH4 with I2

(b) Each boron atom is in sp2 hybridized state

(c) Diborane has one bridged 3 centre-2-electron bond

(d) Diborane is a planar molecule

The option with correct statements is :
A
(c) and (d) only
B
(a) only
C
(c) only
D
(a) and (b) only
2
JEE Main 2021 (Online) 22th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Which one of the following group-15 hydride is the strongest reducing agent?
A
AsH3
B
BiH3
C
PH3
D
SbH3
3
JEE Main 2021 (Online) 20th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
The species given below that does NOT show disproportionation reaction is :
A
$$BrO_4^ - $$
B
$$Br{O^ - }$$
C
$$BrO_2^ - $$
D
$$BrO_3^ - $$
4
JEE Main 2021 (Online) 20th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Chemical nature of the nitrogen oxide compound obtained from a reaction of concentrated nitric acid and P4O10 (in 4 : 1 ratio) is :
A
acidic
B
basic
C
amphoteric
D
neutral
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