MyQuestionIcon

17

You visited us 17 times! Enjoying our articles? Unlock Full Access!

Stereoisomerism

Assertion : D...

Question

Assertion : Diborane has two types of hydrogens.

Reason : By methylation only four hydrogen atoms of diborane are substituted forming $M e_{4} B_{2} H_{2}$ .

A

Both Assertion and Reason are true and Reason is correct explanation of Assertion

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

B

Both Assertion and Reason are true and Reason is not the correct explanation of Assertion

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

Assertion is true but Reason is false

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

Assertion is false but Reason is true

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A Both Assertion and Reason are true and Reason is correct explanation of Assertion
Diborane has 4-termianl $B - H$ bonds and 2-bridged $B - H - B$ bonds. During methylation of diborane, all terminal $H$ atoms are replaced by methyl atoms.

Suggest Corrections

thumbs-up

0

Similar questions

Q. (i)
Assertion: A circle is not a rectilinear figure.
Reason: A figure formed by straight lines only is called a rectilinear figure.
(a) Both Assertion and Reason are true and Reason is a correct explanation of Assertion.
(b) Both Assertion and Reason are true but Reason is not a correct explanation of Assertion.
(c) Assertion is true and Reason is false.
(d) Assertion is false and Reason is true.
(ii)
Assertion: All right angles are equal to one another.
Reason: A unique line passes through a single point.
(a) Both Assertion and Reason are true and Reason is a correct explanation of Assertion.
(b) Both Assertion and Reason are true but Reason is not a correct explanation of Assertion.
(c) Assertion is true and Reason is false.
(d) Assertion is false and Reason is true.

Q. Assertion: A circle is a rectilinear figure.
Reason: A figure formed of line segments only is called a rectilinear figure.
(a) Both Assertion and Reason are true and Reason is a correct explanation of Assertion.
(b) Both Assertion and Reason are true but Reason is not a correct explanation of Assertion.
(c) Assertion is true and Reason is false.
(d) Assertion is false and Reason is true.

Q. Assertion: Ray

\underset{A B}{\to}

has one end-point A.
Reason: Line segment

A B

has two end-points A and B.
(a) Both Assertion and Reason are true and Reason is a correct explanation of Assertion.
(b) Both Assertion and Reason are true but Reason is not a correct explanation of Assertion.
(c) Assertion is true and Reason is false.
(d) Assertion is false and Reason is true.

Q. Assertion : Amount of cyanocobalamine required daily is 3 mcg
Reason : Its deficiency causes pernicious anaemia

Q. Assertion: Every parallelogram is a rectangle.
Reason: The angle bisectors of a parallelogram form a rectangle.
(a) Both Assertion and Reason are true and Reason is a correct explanation of Assertion.
(b) Both Assertion and Reason are true but Reason is not a correct explanation of Assertion.
(c) Assertion is true and Reason is false.
(d) Assertion is false and Reason is true.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Introduction

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Stereoisomerism

Standard XII Chemistry

Join BYJU'S Learning Program

CrossIcon