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Railways PYQCBT 1 2016

RRB NTPC · Question 3

Automobile exhaust is an important element involved in automobile exhaust. A. Fluorine B. Sodium C. Magnesium D. Lead

  1. B

  2. D

  3. A

  4. C

Show answer & explanation

Answer: (B) D

Explanation

Leaded petrol released lead compounds in automobile exhaust, a serious air pollutant; India phased out leaded petrol by 2000.