This type of reasoning questions consists of two statements; an assertion (statement of fact) and a reason (explanation for the assertion).
You have to determine whether each statement is correct. If both the statements are correct, you have to determine whether the reason supports the assertion.
There will be four answer choices for the possible outcomes and you have to select the correct one.
1.Assertion (A) : We feel comfortable in hot and humid climate.
Reason (R) : Sweat evaporates faster in humid climate.
Options:
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.
D. A is false but R is true.
E. Both A and R are false.
Solution:
We feel uncomfortable in hot and humid climate because in hot weather, body sweats more but due to high humidity, this sweat does not evaporate easily.
Correct option: E
2. Assertion (A) : Mohammad-bin-Tughluq is called the 'wisest fool'.
Reason (R) : He had wise plans but implemented them foolishly.
Options:
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.
D. A is false but R is true.
E. Both A and R are false.
Solution:
R provides the correct explanation of A.
Correct option: A
3. Assertion (A) : Weeds should not be allowed to grow along with the crops.
Reason (R) : Weeds leave no space for plants to grow.
Options:
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.
D. A is false but R is true.
E. Both A and R are false.
Solution:
Weeds should not be allowed to grow along with the crops because they consume the plant nutrients.
Correct Option: C
4. Assertion (A) : Carbon dioxide turns lime water milky.
Reason (R) : Carbon dioxide sullies the water.
Options:
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.
D. A is false but R is true.
E. Both A and R are false.
Solution:
Carbon dioxide reacts with lime water(calcium hydroxide) to form milky precipitate of calcium carbonate.
Correct Option: C
5. Assertion (A) : Diamond is used for cutting glass.
Reason (R) : Diamond has a high refractive index.
Options:
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.
D. A is false but R is true.
E. Both A and R are false.
Solution:
Diamond is very hard due to its rigid three dimensional structure and so, it is used for cutting glass.
Refractive index of diamond is high and gives it the greater transparency and brilliance.
Correct Option: B