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For the Assertion (A) and Reason (R) below, choose the correct alternative:
Assertion (A) : When common salt is kept open, it absorbs moisture from the air.
Reason (R) : Common salt contains magnesium chloride.

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CSIR CERI JSA Official Paper-I (Held On: 2022)
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  1. Both (A) and (R) are true and (R) is the correct explanation of (A).
  2. Both (A) and (R) are true but (R) is NOT the correct explanation of (A).
  3. (A) is true but (R) is false.
  4. (A) is false but (R) is true.

Answer (Detailed Solution Below)

Option 1 : Both (A) and (R) are true and (R) is the correct explanation of (A).
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Detailed Solution

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Assertion (A) When common salt is kept open, it absorbs moisture from the air. → True

Reason (R) Common salt contains magnesium chloride → True

Magnesium chloride is common salt is deliquescent and absorbs moisture from the air. Thus the reason (R) is the correct explanation of the assertion (A).

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

Hence, "Option 1" is the correct answer.

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Latest CSIR Junior Secretariat Assistant Updates

Last updated on May 21, 2025

->The CSIR Junior Secretariat Assistant Provisional Response Sheet has been released on 21st May 2025 at the official website.

-> The CSIR Junior Secretariat Assistant Notification 2025 written examination dates has been released for Advt No. CRRI/02/PC/JSA-JST/2025.

-> Candidates had applied online from 22nd March to 21st April 2025.  

-> The CSIR JSA salary ranges from INR 19,900 - INR 63,200 (Indian Institute of Petroleum, Dehradun) and INR 35,600 (Indian Institute of Toxicology Research).

-> The selection of candidates for this post will be based on a Written Exam, followed by a Computer Typing Test.

-> Prepare for the exam with CSIR Junior Secretariat Assistant Previous Year Papers.

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