Select the option that is correct regarding the following two statements, labelled as Assertion (A) and Reason (R).

Assertion (A): Copper sulphate should not be used for control of aquatic weeds, except for the algae.

Reason (R): The concentration of copper sulphate required to destroy the vegetation will assuredly kill any fish present in water.
 

This question was previously asked in
SSC JE (Civil) 2023 Official Paper-II (Held On: 04 Dec, 2023 Shift 1)
View all SSC JE CE Papers >
  1. A is false, but R is true.
  2. Both A and R are true and R is the correct explanation of A.
  3. A is true, but R is false.
  4. Both A and R are true, but R is not the correct explanation of A.

Answer (Detailed Solution Below)

Option 2 : Both A and R are true and R is the correct explanation of A.
Free
Building Materials for All AE/JE Civil Exams Mock Test
15.2 K Users
20 Questions 20 Marks 20 Mins

Detailed Solution

Download Solution PDF

Copper sulphate:

  • Copper sulphate is used to control the algae present in water. 
  • It is a very powerful oxidizing agent so it is toxic. 
  • When it is added to water it can kill bacteria, algae, plants, fungi, etc. 
  • The heavy concentration of copper sulphate in water is killing the vegetation. 
  • This decay of vegetation creates a scarcity of dissolved oxygen.
  • Thus killing of fish starts over there. 

 

Latest SSC JE CE Updates

Last updated on May 28, 2025

-> SSC JE notification 2025 for Civil Engineering will be released on June 30. 

-> Candidates can fill the SSC JE CE application from June 30 to July 21.

-> The selection process of the candidates for the SSC Junior Engineer post consists of Paper I, Paper II, Document Verification, and Medical Examination.

-> Candidates who will get selected will get a salary range between Rs. 35,400/- to Rs. 1,12,400/-.

-> Candidates must refer to the SSC JE Previous Year Papers and SSC JE Civil Mock Test, SSC JE Electrical Mock Test, and SSC JE Mechanical Mock Test to understand the type of questions coming in the examination.

-> The Staff Selection Commission conducts the SSC JE exam to recruit Junior Engineers in different disciplines under various departments of the Central Government.

Get Free Access Now
Hot Links: happy teen patti all teen patti game teen patti lotus teen patti lucky teen patti gold downloadable content