MCQs: Ore of mercury is called
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MCQs: Ore of copper is called
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MCQs: Number of carbon atoms per molecule in fuel oil is
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MCQs: The process of converting minerals into oxides is called
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MCQs: A solid deposit containing a sufficiently high percentage of a mineral to make extraction of metal economically feasible is called
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MCQs: The color of crude oil is
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MCQs: The second step of the Solvay process is
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MCQs: The first step of the Solvay process is
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MCQs: The fifth step of the Solvay process is
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MCQs: Which of the following is used as a fuel for jet planes?
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MCQs: The boiling point of kerosene is
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MCQs: The first step of metallurgy is
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MCQs: How much cooler does the air get for every 1 km increase in altitude in the troposphere?
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MCQs: Which of the following is produced when electrical discharges pass through oxygen in the air?
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MCQs: What is the source of lead compounds?
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MCQs: The atmosphere is divided into how many layers?
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MCQs: How much higher can be the temperature inside a greenhouse as compared to the outside?
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MCQs: The outer layer of the thermosphere is
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MCQs: Minimum temperature of the troposphere is
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MCQs: The temperature of the outer mesosphere is
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