Q. −78 °C is the

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Q. Regular rows and shapes of a crystal is an indication of

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Q. Presence of impurities cause

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Q. "No fixed volume" is a characteristic of

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Q. In order to burn, a hydrocarbon needs a/an

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Q. Forces are weakest in particles of

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Q. Examples of sublime substances include

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Q. Disposal of poly(ethene) bag is extremely difficult and it can cause pollution for coming

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Q. A long chain made up of small repeating units is a

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Q. Alkenes can be oxidized by the help of a powerful oxidizing agent, acidified

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Q. Alcohols are produced by passing alkenes through

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Q. If hydrogen and alkene are passed over finely divided nickel, it gives off

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Q. After bubbling through concentrated solution of any hydrogen halide, the product obtained is

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Q. The double bond in ethene is formed from a

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Q. An estimated amount of 10,000 ethene monomers bond together to make polymer chain of

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Q. Under certain conditions, the ethene molecule reacts to give

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Q. Alcoholic drinks are manufactured by fermentation of

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Q. If ethene is a reactant, then the product will be

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Q. Alkenes mostly follow the reaction of

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Q. The smaller units which react together to form polymer are called

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