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- Question
Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative Assertion(A) : The steam engine was invented by James Watt. Reason (R) : There was a problem of taking out water from flooded mines
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.
ExplanationThe problem of pumping out water from the flooded mines provided the need of a self working engine, which led James Watt to invent the same.
- 1. Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative Assertion (A) : Clothes are not washed properly in hard water. Reason (A) : Hard water contains many minerals.
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) : An atom is neutral despite the charged particles in it. Reason (R) : The neutrons do not have any charge.
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) : In India, the judiciary is independent of the executive. Reason (R) : Judiciary favours the government and helps in the implementation of its plans.
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) : 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
- 5. 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
- 6. A is B's sister. C is B's mother. D is C's father. E is D's mother. Then, how is A related to D?
Options- A. Grandfather
- B. Grandmother
- C. Daughter
- D. Granddaughter Discuss
- 7. Pointing to a person, a man said to a woman, "His mother is the only daughter of your father." How was the woman related to the person ?
Options- A. Aunt
- B. Mother
- C. Wife
- D. Daughter Discuss
- 8. A girl introduced a boy as the son of' the daughter of the father of her uncle. The boy is girl's
Options- A. Brother
- B. Son
- C. Uncle
- D. Son-in-law Discuss
- 9. Pointing out to a lady, a girl said, "She is the daughter-in-law of the grandmother of my father's only son." How is the lady related to the girl ?
Options- A. Sister-in-law
- B. Mother
- C. Aunt
- D. Can't be determined Discuss
- 10. P is the brother of Q and R. S is R's mother. T is P's father. Which of the following statements cannot be definitely true ?
Options- A. T is Q's father
- B. S is P's mother
- C. P is S's son
- D. Q is T's son Discuss
Assertion and Reason problems
Search Results
Correct Answer: Both A and R are true but R is NOT the correct explanation of A.
Explanation:
Clothes are not washed properly in hard water because it does not form lather with soap. However, it is true that hard water contains many minerals.
Correct Answer: Both A and R are true but R is NOT the correct explanation of A.
Explanation:
An atom contains the positively charged protons and an equal number of negatively charged electrons So, it is neutral
Correct Answer: A is true but R is false.
Explanation:
In India, the judiciary is completely independent of the executive. It has no interference in the affairs of the state nor can it be influenced by the government.
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.
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: Granddaughter
Explanation:
A is the sister of B and B is the daughter of C.
So, A is the daughter of C. Also, D is the father of C.
So, A is the granddaughter of D.
Correct Answer: Aunt
Explanation:
Daughter of your father ? Your sister. So, the person's mother is woman's sister or the woman is person's aunt.
Correct Answer: Brother
Explanation:
Daughter of uncle's father ? Uncle's sister ? Mother;
Mother's son ? Brother
Correct Answer: Can't be determined
Explanation:
Girls's father's only son? Girl's brother. Daughter in law of girl?s grandmother can be their mother, or maternal uncle?s wife, i.e. aunt. So relation cannot be determined.
Correct Answer: Q is T's son
Explanation:
P, Q, R are children of same parents. So. S who is R's mother and T, who is R's father will be mother and father of all three.
However, it is not mentioned whether Q is male or female So, D cannot be definitely true.
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