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Alkynes are ________________ in water and the melting point ________________ with increase in molar mass.

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in Chemistry – Class 11 by (148k points)
Alkynes are ________________ in water and the melting point ________________ with increase in molar mass.

(a) soluble, decrease

(b) insoluble, increase

(c) insoluble, decrease

(d) soluble, increase

The question was asked during an interview for a job.

My question is based upon Hydrocarbons topic in chapter Hydrocarbons of Chemistry – Class 11

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The correct option is (b) insoluble, increase

For explanation: Alkynes are insoluble in water but soluble in organic solvents like ethers, carbon tetrachloride and Benzene. The melting point, boiling point and density of alkynes increase with the increase in the molar mass.

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