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- Question
Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative Assertion (A) : Bats can fly in the night. Reason (R) : Bats emit ultrasonics.
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.
- Correct Answer
- Both A and R are true and R is the correct explanation of A.
ExplanationBats can fly in the night because they can trace the obstacle in the path by perceiving the echo of the ultrasonic sound emitted by them after it is reflected by the obstacle.
- 1. Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative Assertion (A) : Leakages in household gas cylinders can be detected. Reason (R) : LPG has a strong smell.
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. Discuss
- 2. Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative 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. Discuss
- 3. Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative Assertion (A) : Gandhiji withdrew the non-cooperation movement Reason (R) : There was violence at the Chauri Chaura outrage
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. Discuss
- 4. Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative Assertion (A) : In India, females have higher life expectancy than the males. Reason (R) : Females receive a better diet.
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. Both A and R are false. Discuss
- 5. Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative Assertion (A) : In India, people elect their own representatives. Reason (R) : India is a democracy.
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. Discuss
- 6. Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative Assertion (A) : Appendix is a vestigial organ in human body. Reason (R) : It does not participate in digestion.
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. Discuss
- 7. Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative Assertion (A) : Inside the earth metals are present in molten state. Reason (R) : Earth absorbs the sun's rays.
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. Discuss
- 8. Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative Assertion (A) : Red colour of blood is due to haemoglobin. Reason (R) : Haemoglobin is a red pigment.
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. Discuss
- 9. Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative 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. Discuss
- 10. Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative Assertion (A) : a Leaves of plants are green. Reason (R) : Plants contain chromoplasts, the green pigment.
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. Discuss
Assertion and Reason problems
Search Results
Correct Answer: A is true but R is false.
Explanation:
Leakages in household gas cylinders can be detected because of the strong smell of ethyl merceptan mixed with LPG.
Correct Answer: Both A and R are true and R is the correct explanation of A.
Explanation:
R provides the correct explanation of A.
Correct Answer: Both A and R are true and R is the correct explanation of A.
Explanation:
Gandhiji withdrew the non-cooperation movement because of the violence in the Chauri Chaura outrage.
Correct Answer: Both A and R are false.
Explanation:
In India, due to high birth rate and due to neglect, females have a lower life expectancy than the males and although females need a better diet, they do not receive it.
Correct Answer: Both A and R are true and R is the correct explanation of A.
Explanation:
India, being a democracy, it is a government run by the representatives elected by its people
Correct Answer: Both A and R are true and R is the correct explanation of A.
Explanation:
Appendix, earlier used to digest raw vegetable matter, is now a vestigial organ in human body and does-not perform any function.
Correct Answer: A is true but R is false.
Explanation:
Inside the earth, the high temperature and pressure keeps the metals in molten state. The earth does not absorb the sun's rays but reflects them.
Correct Answer: Both A and R are true and R is the correct explanation of A.
Explanation:
Haemoglobin is the blood pigment that imparts red colour to the blood.
Correct Answer: A is true but R is false.
Explanation:
Carbon dioxide reacts with lime water (calcium hydroxide) to form milky precipitate of calcium carbonate
Correct Answer: A is true but R is false.
Explanation:
Leaves of plants are green because they contain the green pigment, chlorophyll. However, plants contain chromoplasts but they are not green pigments.
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