The phenomenon observed when dust particles collide randomly in a beam of sunlight is known as

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Which of the following compounds is used as a gaseous fuel?

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A positive reaction to Fehling’s test indicates the presence of

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The products of the reaction between CH3CH 2COOH and CH3OH are H2O and

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When alkanols react with sodium, the gas evolved is

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Dehydration of ethanol produces

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Petrol consists mainly of

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Petrol consists mainly of

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Which of the following alkanes has the highest boiling point?

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The liquid product of the destructive distillation of coal is

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Which of the following can undergo both addition reactions and substitution reactions?

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A device used in the laboratory for intermittent production of gases without heating is

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