Question : Which of the following fuels causes minimum environmental pollution?
Option 1: Diesel
Option 2: Kerosene
Option 3: Hydrogen
Option 4: Coal
Correct Answer: Hydrogen
Solution : The correct answer is Hydrogen.
Hydrogen fuel produces no harmful substance and water is the byproduct of this combustion reaction i.e. why they are least harmful to the environment.
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Question : Which of the following primarily causes lead pollution?
Option 1: CFL lamp
Option 2: Automobile battery
Option 3: Polymer
Option 4: Diesel engine
Question : Which of the following primarily produces Nitrogen Dioxide leading to air pollution?
Option 2: Automobile Battery
Option 4: Diesel Engine
Question : Which of the following is a radioisotope of hydrogen?
Option 1: Xenon
Option 2: Technetium
Option 3: Thorium
Option 4: Tritium
Question : Which of the following substance's smell is similar to ethanoic acid?
Option 1: Tomato juice
Option 3: Vinegar
Option 4: Lemon
Question : Which of the following is not a natural source of hydrocarbon?
Option 1: Natural gas
Option 2: Coal
Option 3: Petroleum
Option 4: Mica
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