Testbook Logo
Exams SuperCoaching Test Series Skill Academy
More
English
Hindi

Question

Download Solution PDF

For the Assertion (A) and Reason (R) below, choose the correct alternative:
Assertion (A) : An iron ball floats on mercury but sinks in water.
Reason (R) : The specific gravity of iron is more than that of mercury.

This question was previously asked in
CSIR CERI JSA Official Paper-I (Held On: 2022)
Download PDF Attempt Online
View all CSIR Junior Secretariat Assistant Papers >
  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 3 : (A) is true but (R) is false.
Free Tests
View all Free tests >
Free
CSIR JSA General Awareness Mock Test
8.2 K Users
20 Questions 60 Marks 12 Mins
Start Now

Detailed Solution

Download Solution PDF

Assertion (A) An iron ball floats on mercury but sinks in water. → True

Reason (R) The specific gravity of iron is more than that of mercury. → False

Iron is denser than water, so it sinks in water. But mercury is denser than iron, so iron floats on mercury.

Thus, (A) is true but (R) is false.

Hence, "Option 3" is the correct answer.

Download Solution PDF
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.

‹‹ Previous Ques
Next Ques ››

More Assertions and Reasons Questions

Q1.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.
Q2.For the Assertion (A) and Reason (R) below, choose the correct alternative: Assertion (A) : An iron ball floats on mercury but sinks in water. Reason (R) : The specific gravity of iron is more than that of mercury.
Q3.Select an option that is true regarding the following two statements labelled Assertion (A) and Reason (R). A. Sun is a star. R. Stars are space objects that produces their own energy through fusion reaction of gases.
Q4.DIRECTION: For the Assertion (A) and Reason (R) given below, choose the correct alternative from the following: Assertion (A): Admiral is the highest possible rank in Indian Army. Reason (R): Chief of Staff of Indian Navy is known as General.
Q5.Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R Assertion A: Hybrid Electric Vehicles (HEVs) fuel running cost is lesser than Electric Vehicles (EVs). Reason R: Hybrid Electric Vehicles have both an internal combustion engine and an onboard electric power generation system. In light of the above statements, choose the most appropriate answer from the options given below
Q6.Given below are two statements: one is labeled as Assertion A and the other is labeled as Reason R Assertion (A): Large dams on rivers tend to reduce the fertility of land areas in the river floodplain Reasons (R): Dams reduce the deposition of silt over land areas in the river floodplain. In light of the above statements, choose the most appropriate answer from the options given below
Q7.Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R Assertion A: In reflective teaching methodology, a teacher shares information to be memorised by students. Reason R: Reflective teaching methodology inculcates higher order thinking skills. In light of the above statements, choose the correct answer from the options given below:
Q8.Given below are two statements : One is labeled as Assertion (A) and the other is labeled as Reason (R). Assertion (A): The understanding of communication as a ritual is not a radical view. Reason (R) : The hegemonic view of transmission of communication is no longer valid. In the light of the above statements. choose the correct answer from the options given below :
Q9.Given below are two statements : One is labelled as Assertion (A) and the other is labelled as Reason (R) : Assertion (A) : In vitro testing forms the basis for hazard identification. Reason (R) : In vitro studies are performed within the same biological entities. In the light of the above statements, choose the correct answer from the options given below :
Q10.Given below are two statements : One is labelled as Assertion (A) and the other is labelled as Reason (R) : Assertion (A) :The Internet of Things (IoT) is a rapidly evolving technology due to its wide range of applications. Reason (R) : IoT is inherently immune to Cyber attacks. In the light of the above statements, choose the correct answer from the options given below :
Suggested Test Series
View All >
CSIR Junior Secretariat Assistant (JSA) 2025 Mock Test
151 Total Tests with 5 Free Tests
Start Free Test

More Verbal Reasoning Questions

Q1.Look at the following statement and find out the right conclusion. The teacher scolded Aruna in front of her classmates during project submission. Conclusion I: The Aruna was not as popular as her other classmates. Conclusion II: The teacher does not like Aruna.
Q2.In this question, a passage is given followed by a statement. Read the passage carefully and judge the statement based on the given pas Using knives and shears, a pair of Russian spacewalkers on Tuesday cut samples of material around a mysterious hole in a Soyuz spacecraft docked on the International Space Station that a Moscow official suggested could have been deliberately sabotaged. The 2 mm cavity on the Soyuz spaceship docked at the ISS caused an air leak detected in August, two months after the craft’s last voyage. Roscosmos space agency said the aim was to discover whether the small but dangerous hole had been made on Earth or in space, to cut away the insulation covering the hole, take out a sample of the material around it to analyse and put new insulation over the area. Roscosmos chief stated that an investigation had ruled out a manufacturing error. The veteran cosmonauts struggled but eventually succeeded in their mission. Before this spacewalk, astronauts had only
Q3.The question given below consists of a statement, followed by two arguments numbered 1 and 2. You have to decide which of the arguments is a' Give answer: (A) If only argument1 is strong (B) If only argument 2 is strong (C) If either 1 or 2 is strong (D) If neither 1 nor 2 is strong and (E) If both 1 and 2 are strong. Statement: Should there be a ban on hunting of wild animals? Argument: 1. Yes, it could result in the extinction of particular species. 2. No, it provides a cheaper source of meat.
Q4.In this question, a statement is given followed by two conclusions numbered i and ii. You have to assume everything in the statement to be true, th Statement: Thanjavur is known as the rice bowl of Tamil Nadu. Conclusion: i) Rice is produced only in Thanjavur. ii) Rice may be the major crop cultivated in Thanjavur. Choose the appropriate one from the following options (A) Only conclusion i follows (B) Only conclusion ii follows (C) Either i or ii follows (D) Neither i nor ii follows (E) Both i and ii follow.
Q5.Statement: Luxembourg wants to make travel free to benefit people from rural areas. Choose the appropriate one from the following options: A - The statement is definitely true B - The statement is probably true C - The statement is cannot be determined D - The statement is definitely false
Q6.The question given below consists of a statement, followed by two arguments numbered 1 and 2. You have to decide which of the arguments is a 'strong' argument and which is a 'weak' argument. Give answer: (A) If only argument 1 is strong (B) If only argument 2 is strong (C) If either 1 or 2 is strong (D) If neither 1 nor 2 is strong and (E) If both 1 and 2 are strong.  Statement: Should women entrepreneurs be encouraged? Argument: Yes, they will help motivate many young girls and women. Yes, they will help in industrial development of the country.
Q7.In this question, a statement is given followed by two conclusions numbered I and II. You have to assume everything in the statement to be true, then consider the two conclusions together and decide which of them logically follows beyond a reasonable doubt from the information given in the statement. Statement: It is advisable to drink coffee twice everyday. Conclusions: I) Coffee may be a healthy drink. II) Coffee is healthier than Tea. Choose the appropriate one from the following options: (A) Only conclusion I follows (B) Only conclusion II follows (C) Either I or II follows (D) Neither I nor II follows and (E) Both I and II follow.
Q8.If Rituparna studies, she will pass her exam. Rituparna fails the exam Which one of the following can be concluded from the above statements? 
Q9.Consider the following two statements. Statement-I Akshay's movie has crossed the 300 crores mark at the box-office. Statement-II His movie is nominated for the Oscars. Choose the correct option by analyzing which of the statement is cause and which one is its effect?
Q10.Decisions about handcuffing or restraining inmates are often left to the officers involved. An officer is legally responsible for exercising good judgment and for taking necessary precautions to prevent harm both to the inmate involved and to others.In which of the following situations is handcuffing or physical restraint most likely to be needed?
Important Exams
SuperCoaching
Exams
Test Series
Previous Year Papers
Objective Questions
Testbook Edu Solutions Pvt. Ltd.
1st & 2nd Floor, Zion Building,
Plot No. 273, Sector 10, Kharghar,
Navi Mumbai - 410210
[email protected]
Toll Free:1800 833 0800
Office Hours: 10 AM to 7 PM (all 7 days)
Company
About usCareers We are hiringTeach Online on TestbookPartnersMediaSitemap
Products
Test SeriesTestbook PassOnline CoursesOnline VideosPracticeBlogRefer & EarnBooks
Our Apps
Follow us on
Copyright © 2014-2022 Testbook Edu Solutions Pvt. Ltd.: All rights reserved
User PolicyTermsPrivacy
Get Free Access Now
Hot Links： teen patti noble teen patti go teen patti lucky teen patti rich