Assertion (A) & Reason (B) MCQ

MCQ 11 Mark

DIRECTIONS: The questions in this segment consists of two statements one labelled as ?Assertion $A$? and the other labelled as ?Reason $R?$ You are to examine these two statements carefully and decide if the assertion $A$ and reason $R$ are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below.
Assertion (A): During drought there is a shortage of food and fodder.
Reason (R): Droughts result in conservation of water.

A
Both $A$ and $R$ are true and $R$ is the correct explanation of $A$
B
Both $A$ and $R$ are true but $R$ is not the correct explanation of $A$
✓
$A$ is true but $R$ is false
D
$A$ is false but $R$ is true

Answer

Correct option: C.

$A$ is true but $R$ is false

$A$ is true but $R$ is false.

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MCQ 21 Mark

DIRECTIONS: The questions in this segment consists of two statements one labelled as ?Assertion $A?$ and the other labelled as ?Reason $R?$ You are to examine these two statements carefully and decide if the assertion $A$ and reason $R$ are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below.
Assertion (A): In such areas where there is no vegetation the rain water flows quickly and has no effect on the top layer of soil of that area.
Reason (R): When water level rises in rivers, ponds etc. Due to excessive rains it causes floods.

A
Both $A$ and $R$ are true and $R$ is the correct explanation of $A$
B
Both $A$ and $R$ are true but $R$ is not the correct explanation of $A$
C
$A$ is true but $R$ is false
✓
$A$ is false but $R$ is true

Answer

Correct option: D.

$A$ is false but $R$ is true

$A$ is false but $R$ is true.

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MCQ 31 Mark

DIRECTIONS: The questions in this segment consists of two statements one labelled as ?Assertion $A?$ and the other labelled as ?Reason $R?$ You are to examine these two statements carefully and decide if the assertion $A$ and reason $R$ are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below.
Assertion (A): Role of oceans in supplying usable water is quite important.
Reason (R): When the sea water reaches us, in various other forms of sources of water, it is no more saline.

A
Both $A$ and $R$ are true and $R$ is the correct explanation of $A$
✓
Both $A$ and $R$ are true but $R$ is not the correct explanation of $A$
C
$A$ is true but $R$ is false
D
$A$ is false but $R$ is true

Answer

Correct option: B.

Both $A$ and $R$ are true but $R$ is not the correct explanation of $A$

Both $A$ and $R$ are true but $R$ is not the correct explanation of $A.$

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MCQ 41 Mark

DIRECTIONS: The questions in this segment consists of two statements one labelled as ?Assertion $A?$ and the other labelled as ?Reason $R?$ You are to examine these two statements carefully and decide if the assertion $A$ and reason $R$ are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below.
Assertion (A): The sea water is saline.
Reason (R): The sea water contains many dissolved salts.

✓
Both $A$ and $R$ are true and $R$ is the correct explanation of $A$
B
Both $A$ and $R$ are true but $R$ is not the correct explanation of $A$
C
$A$ is true but $R$ is false
D
$A$ is false but $R$ is true

Answer

Correct option: A.

Both $A$ and $R$ are true and $R$ is the correct explanation of $A$

Both $A$ and $R$ are true and $R$ is the correct explanation of $A.$

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MCQ 51 Mark

DIRECTIONS: The questions in this segment consists of two statements one labelled as ?Assertion $A?$ and the other labelled as ?Reason $R?$ You are to examine these two statements carefully and decide if the assertion $A$ and reason $R$ are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below.
Assertion (A): Sea water changes to water vapours by the process of transpiration in the presence of sunlight.
Reason (R): When sea water changes into water vapour it leaves the dissolved salts behind.

A
Both $A$ and $R$ are true and $R$ is the correct explanation of $A$
B
Both $A$ and $R$ are true but $R$ is not the correct explanation of $A$
C
$A$ is true but $R$ is false
✓
$A$ is false but $R$ is true

Answer

Correct option: D.

$A$ is false but $R$ is true

$A$ is false, $R$ is true. [It occurs by process of evaporation].

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MCQ 61 Mark

DIRECTIONS: The questions in this segment consists of two statements one labelled as ?Assertion $A?$ and the other labelled as ?Reason $R?$ You are to examine these two statements carefully and decide if the assertion $A$ and reason $R$ are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below.
Assertion (A): Level of ground water below the surface of Earth at a given place is known as water table.
Reason (R): Excess use of groundwater in cities is resulting in lowering of water table.

A
Both $A$ and $R$ are true and $R$ is the correct explanation of $A$
✓
Both $A$ and $R$ are true but $R$ is not the correct explanation of $A$
C
$A$ is true but $R$ is false
D
$A$ is false but $R$ is true

Answer

Correct option: B.

Both $A$ and $R$ are true but $R$ is not the correct explanation of $A$

Both $A$ and $R$ are true but $R$ is not the correct explanation of $A.$

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Science Assertion (A) & Reason (B) MCQ

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