UPSC Civil Service Exam Questions - Civil Engineering Questions and Answers

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Discussion :: UPSC Civil Service Exam Questions

Consider the following statements :
Some amount of chlorides is allowed in drinking water because
1. it helps in killing bacteria.
2. small quantity of chlorides adds to the taste
3. it is not injurious to human health.
4. it is not economical to remove it completely.
Which of these statements are correct ?

1, 2 and 4

1, 2 and 3

2, 3 and 4

1, 3 and 4

View Answer