The two elements that are frequently used for making transistors are
boron and aluminium
silicon and germanium
iridium and tungsten
niobium and columbium
Additional Questions
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The filament of an electric bulb is made of |
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Diamond is an allotropic form of |
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In fireworks, the green flame is produced because of |
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Permanent hardness of water can be removed by adding |
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Marsh gas is |
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LPG consists of mainly |
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Air is a/an |
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Production of chlorofluorocarbons (CFC) gas which is proposed to be banned in India, is used in which of the following domestic products? |
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Balloons are filled with |
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Which of the following does not contain a coinage metal? |
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