Alkynes Multiple Choice Questions with Answers – PDF Download

MCQ 1: Acetylene is also called:

1. Ethyne
2. ethene
3. ethane
4. methane

MCQ 2: Oxy-acetylene torches can produce temperature as high as:

1. 30 degrees
2. 300 degrees
3. 3000 degrees
4. 30000 degrees

MCQ 3: What type of reaction do alkynes undergo across the triple bond?

1. elimination reaction
2. substitution reaction
3. addition reaction
4. halogenation

MCQ 4: Glyoxal formed by loss of two water molecules by tetrahydroxy ethane oxidizes to:

1. ethylene glycol
2. acetylene
3. oxalic acid
4. benzoic acid

MCQ 5: Tetrahydroxy ethane loses two water molecules to form:

1. oxalic acid
2. Glyoxal
3. acetylene
4. ethylene glycol