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Sodium bicarbonate is used in fire extinguisher because it produces -
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Important Questions on Chemistry
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Substance which stabilise foam in foam type fire extinguisher is -
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Which of the following has the greatest mass ?
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In 'aufbau principle' , the term aufbau represents :
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Which of the following statements is incorrect ?
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Which of the following is not a physical change?
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Which of the following is liquid metal.
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Which of the following is the second most abundant metal in the earth's crust?
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Read the passage and answer the questions.
In a chemistry lab exam, six different substances-A, B, C, D, E and F-are provided to the students, along with certain facts about each substance. A, C and F are metals, while B and E are non-metals. A, D and E are liquids. Substances A and F are silver to silvery-white in colour. Substance B is a good conductor of heat, and both B and C are used to make jewellery. F is a substance that is soft enough to be cut with a knife. F reacts with D to produce a hydroxide, with release of hydrogen gas.
Which of the above substances is neither a metal nor a non-metal?
