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Statement I: Air is a mixture of gases, water vapour and dust particles. Statement II: Air is composed of only one gas that is nitrogen. Statement III: Air is composed of two gases, nitrogen and oxygen only. Which of the above statement is incorrect? |
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Answer» Statement I: Air is a mixture of gases, water vapour and dust particles. Statement II: Air is composed of only one gas that is nitrogen. Statement III: Air is composed of two gases, nitrogen and oxygen only. Which of the above statement is incorrect? |
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