Organic Chemistry MCQ with Answers

Organic Chemistry MCQ with Answers

81) The reduction of an alkyne to alkene using lithium metal in liquid ammonia as solvent results in:

Answer is:

trans addition of hydrogen atoms

82) The name fire damp is given to:

Answer is:

Methane

Explanation:

Methane is found in coal mines where it forms an explosive mixture with air and is thus, known as fire damp.

83) When a mixture of methane and oxygen is passed over heated molybdenum oxide at 350^oC − 500^oC, the product formed is:

Answer is:

HCHO

84) How many grams of bromine will react with 21 gm of C₃H₆?

Answer is:

80

85) In which of the following compounds, addition of HBr in presence and absence of peroxide will have no effect?

Answer is:

2−butene

Explanation:

Markownikov and anti Markownikov addition is applicable only on asymmetrical alkenes, so, 2−butene being a symmetrical alkene would give the same product in both the cases.

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