Chemistry
Laughing gas has chemical composition of following two elements ?
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Which of the following elements is not present abundantly in earth’s crust ?
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Rectified spirit contains alcohol about ?
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Bronze medal is made up of metals ?
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About 50% of the Earth’s crust, including the waters on the Earth and atmosphere, is?
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The property of absorbing moisture from air is called____________?
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Bromine is a___________________?
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Hydrogen peroxide (H₂O₂)______________?
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The most pure form of carbon among these are?
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