UPSC EPFO APFC 2023 · Question 87

Question 87 of the UPSC EPFO APFC Recruitment Test 2023 (General Studies) (2 July 2023). Try it first, then check your answer and the explanation in the practice app.

APFC 2023 · Q87 · General Science & Computers · Chemistry
The effluents of which among the following industries are considered to be the main cause for lowering the pH value of river water?
1. Alcohol distillery industries
2. Plastic cup manufacturing industries
3. Soap and detergent industries
4. Lead battery manufacturing industries
निम्नलिखित में से किस एक उद्योग के बहिःस्राव, नदी जल के pH मान को कम करने के मुख्य कारण माने जाते हैं?
1. अल्कोहल डिस्टिलरी उद्योग
2. प्लास्टिक कप विनिर्माण उद्योग
3. साबुन एवं डिटर्जेंट उद्योग
4. सीसा (लेड) बैटरी विनिर्माण उद्योग
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