JEE Main 2021 (Online) 22th July Evening Shift | p-Block Elements Question 129 | Chemistry | JEE Main - ExamSIDE.com

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JEE Main 2021 (Online) 22th July Evening Shift

MCQ (Single Correct Answer)

+4

-1

Out of Syllabus

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

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

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

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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