Which of the following noble gases is abundant in air?

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Sodium carbonate is produced by____________?

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Electron was discovered by?

A. Michael Faraday B. James Maxwell C. Yuri Gagarin D. J.J Thomson...

Some substances are good conductor of electricity in both the solid and liquid states. These substances are generally______________?

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Which of the following noble gases is not present in atmosphere?

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Which law states that the rate of the effusion of a gas is inversely proportional to the square root of its density?

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