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Materials Metal...

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  • Question 1
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    Which metal is stored in kerosene oil?

  • Question 2
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    Non-metals are usually poor conductors of heat and electricity. They are non-lustrous, non-sonorous, non-malleable and are coloured. The non-metal which is known to form the largest number of compounds is:

  • Question 3
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    Which of the following non-metals react and catches fire on exposure to air?

  • Question 4
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    Which one of the following nutrient is not available in fertilizers?

  • Question 5
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    Materials which can be drawn into wires are called ductile. Which of the following is not used as a ductile material?

  • Question 6
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    Calcium phosphate is present in tooth enamel. Its nature is __________.

  • Question 7
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    Which of the following is used for dissolution of gold?

  • Question 8
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    Generally, non-metals are not lustrous. Which of the following non-metal is lustrous?

  • Question 9
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    Metal that exists in the liquid state at room temperature is :

  • Question 10
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    An element $$A$$ is soft and can be cut with a knife. This is very reactive with air and cannot be kept open in the air. It reacts vigorously with water. The element $$A$$ is:

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