The gas usually filled in the electric bulb is
nitrogen
hydrogen
carbon dioxide
oxygen
Additional Questions
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Washing soda is the common name for |
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Quartz crystals normally used in quartz clocks etc. is chemically |
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Which of the gas is not known as green house gas? |
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Bromine is a |
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The hardest substance available on earth is |
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The variety of coal in which the deposit contains recognisable traces of the original plant material is |
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Tetraethyl lead is used as |
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Which of the following is used as a lubricant? |
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The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing, is |
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The gases used in different types of welding would include |
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