Which of the following is used as a lubricant?
Posted: Mar 05, 2013
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Tetraethyl lead is used as
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The hardest substance available on earth is
Posted: Mar 04, 2013
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Bromine is a
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Which of the gas is not known as green house gas?
Posted: Mar 04, 2013
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Quartz crystals normally used in quartz clocks etc. is chemically
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Washing soda is the common name for
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The gas usually filled in the electric bulb is
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Chemical formula for water is
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Which of the following metals forms an amalgam with other metals?
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Which of the following is used in pencils?
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