MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Slow Changes and Fast Changes

Assertion: Bu...

Question

Assertion: Burning of paper is a permanent change.
Reason: The products formed on burning of paper cannot be converted back to paper.

A

Both assertion and reason are true. Reason is the 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. 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. Reason is the correct explanation of assertion.
The changes which cannot be reversed or undone are called permanent changes.
When a paper is burnt, ash and some gases are formed which cannot be converted back to paper again. Hence, burning of paper is a permanent change.

Suggest Corrections

thumbs-up

1

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: 3 + 7 = 9 is a statement.
Reason: A sentence that can be judged to be true or false, but not both, is called a statement.
(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: 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.

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

Q. Assertion: A cyclic parallelogram is a square.
Reason: Diameter is the largest chord in a circle.
(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

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Slow Changes and Fast Changes

Standard VII Chemistry

Join BYJU'S Learning Program

CrossIcon