Question : Which of the following is a tough, porous, black substance and an almost pure form of carbon?
Option 1: Coke
Option 2: Bitumen
Option 3: Coal tar
Option 4: Coal gas
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Correct Answer: Coke
Solution : The correct answer is Coke.
Coke is a grey, robust, and porous fuel primarily produced through the destructive distillation of low-ash, low-sulphur bituminous coal. This industrial product is crucial in iron ore smelting and serves as a clean-burning fuel in stoves and forges, where air pollution is a concern.
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Question : What is another name for frozen carbon dioxide?
Option 1: Refrigerant
Option 2: Coal
Option 3: Dry ice
Option 4: Coke
Question : Which of the following is a renewable resource?
Option 1: Coal
Option 2: Mineral Oil
Option 3: Natural gas
Option 4: Forests
Question : Which of the following is not a greenhouse gas?
Option 1: Nitrogen
Option 2: Methane
Option 3: Carbon dioxide
Option 4: Nitrous oxide
Question : Which of the following is not an example of an inflammable substance?
Option 1: Glass
Option 2: Alcohol
Option 3: LPG
Option 4: Petrol
Question : Which of the following is an agro-based industry?
Option 1: Aluminium
Option 3: Iron and Steel
Option 4: Sugar
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