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Q. The biogas used for cooking is a mixture of which of the following
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Q. The mineral containing both magnesium and calcium is
Q. Fill in the blank with the most appropriate option. Ethanol is denatured to ___.
Q. The maximum number of isomers for an alkene with molecular formula C4H8 is
Q. Which of the following is usually not an air-pollutant?
Q. The 1st organic compound synthesised in the laboratory was
Q. Rain water helps to increase the _________ to some extent.
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