Assertion-Reason-based questions.

Directions: Each of the following questions contains an assertion followed by a reason. Read them carefully and answer the questions on the basis of the following options.

a) Both assertion and reason are true and the reason is the correct explanation of assertion.

b) Both assertion and reason are true but the reason is not the correct explanation of the assertion.

c) Assertion is true and the reason is false.

d) Assertion is false and the reason is true.

Question 7:

Assertion (A): The surface of cut fruits and vegetables turns brown.

Reason (R): Some compounds present in fruits react with oxygen to form a pigment called melanin.

Open in App

Solution

c) Assertion is true and the reason is false.

Suggest Corrections

Similar questions

Q. Directions: In the following questions, a statement of assertion is followed by a statement of reason.
Mark the correct choice as:
Assertion: For acidic impurities like

S i O_{2}

present in an ore, basic fluxes are used.
Reason: Lime is a basic flux.

In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the coreect answer out of the following choices.
(a) Both assertion and reason are true and reason is the coreect explanation of assertion.
(b) Both assertion and reason are true but reason is not the correct explanation of assertion.
(c) Assertion is true but reason is false.
(d) Assertion is false but reason is true.
(e) Assertion and reason both are wrong.
Assertion (A) Zirconium can be purified by van Arkel method.
Reason $(R) Z r I_{4}$ is volatile and decomposes at 1800K.

In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the coreect answer out of the following choices.
(a) Both assertion and reason are true and reason is the coreect explanation of assertion.
(b) Both assertion and reason are true but reason is not the correct explanation of assertion.
(c) Assertion is true but reason is false.
(d) Assertion is false but reason is true.
(e) Assertion and reason both are wrong.
Assertion (A) Sulphide ores are concentrated by froth flottion method.
Reason (R) Cresols stabilise the froth in froth floatation method.

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.

In the following questions a statement of assertion (A) followed by a statement of reason (R) is given. Choose the correct answer out of the following choices.
(a) Assertion and reason both are true, reason is correct explanation of assertion.
(b) Assertion and reason both are true but reason is not the correct explanation of assertion.
(c) Assertion is true, reason is false.
(d) Assertion is false, reason is true.

Assertion (A) Linkage isomerism arises in coordination compounds containing ambidentate ligand.
Reason (R) Ambidentate ligand has two different donor atoms.

Join BYJU'S Learning Program