Assertion: Copper metal can reduce $F{e}^{2+}$ in acidic medium.

Reason: Copper is a stronger reducing agent than Iron.

Q. Assertion: C₄ – photosynthetic pathway is more efficient than C₃ pathway Reason: Photorespiration is suppressed in C₄ plants

Q. Read the assertion and reason carefully to mark the correct option out of the options given below:
$\left(a\right)$If both assertion and reason are true and the reason is the correct explanation of the assertion.
$\left(b\right)$If both assertion and reason are true but reason is not the correct explanation of the assertion.
$\left(c\right)$If assertion is true but reason is false.
$\left(d\right)$If assertion is false but reason is true.
Assertion: 4-nitrophenol is more acidic than picric acid.
Reason: Phenol is a weaker acid than carbonic acid.

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

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.