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Easy Alkynes: Acidic character, addition of hydrogen, halogens, water and hydrogen halides, polymerization MCQs for JEE

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Part of Hydrocarbons in JEE Main Chemistry.

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Q1ChemistryUnit 15: Hydrocarbons
Methyl acetylene is also known as:
Q2ChemistryUnit 15: Hydrocarbons
The reagent X\boldsymbol{X} used for the following reaction is: R−C=CR′+H2⟶XCH′C=CH′R′\mathbf{R}-\mathbf{C}=\mathbf{C R}^{\prime}+\mathbf{H}_{2} \stackrel{\mathbf{X}}{\longrightarrow} \underset{\mathbf{H}^{\prime}}{\mathbf{C}} \mathbf{C}=\mathbf{C}_{\mathbf{H}}^{\prime \mathbf{R}^{\prime}}
Q3ChemistryUnit 15: Hydrocarbons
A mixture of oxygen and ethyne is burnt for welding. Why a mixture of ethyne and air is not used?
Q4ChemistryUnit 15: Hydrocarbons
Which of the following is true:
Q5ChemistryUnit 15: Hydrocarbons
Acetylene gives precipitate with ammonical silver nitrate is due to:
Q6ChemistryUnit 15: Hydrocarbons
CH3−C≡CH\boldsymbol{C H}_{3}-\boldsymbol{C} \equiv \boldsymbol{C H} The IUPAC name of the compound is:
Q7ChemistryUnit 15: Hydrocarbons
Treatment of calcium carbide with water gives:
Q8ChemistryUnit 15: Hydrocarbons
Acetylene polymerizes to give:

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