Chemistry MCQ on Alkyne for NEET, JEE, Medical and Engineering Exam 2021
MCQ on Alkyne: Chemistry is considered to be the most scoring subject in NEET JEE Exam. As it is one of the easiest scoring subjects, it is often ignored and undermined a subject. But if you want to get an edge over others, here is a tip, master NEET/JEE Chemistry concepts. Chemistry demands the attention of students in understanding reactions and concrete basic understanding but once done it only gets easier from there. Mastering NCERT syllabus for NEET/JEE Chemistry should be topping your list of to-do for chemistry.
In this post we are providing you MCQ on Alkyne, which will be beneficial for you in upcoming NEET, JEE, Medical and Engineering Exams.
MCQ on Alkyne
Q1. Alkynes cannot be prepared from ________. a) Alcohols
a) Alcohols
b) Aldehydes
c) Ketones
d) Other alkynes
Q2. Majority of the alkynes are not prepared from/by ______. c) Hydrogenation
a) Acetylene
b) Condensation
c) Hydrogenation
d) Dehydrohalogenation
Q3. In the ozonolysis reaction, acetylene forms ______. c) Glyoxal, formic acid
a) Glycol
b) Formaldehyde
c) Glyoxal, formic acid
d) None of the above
Q4. Ethyne and Ethane can be separated from a mixture by passing it through ______. d) Ammonical Cu2Cl2
a) Pyrogallol
b) Charcoal powder
c) Concentrated H2SO4
d) Ammonical Cu2Cl2
Q5. Select the incorrect statement regarding terminal alkynes. b) Terminal alkynes are not as acidic as alkanes
a) Methylacetylene is an example of terminal alkynes
b) Terminal alkynes are not as acidic as alkanes
c) These have a replaceable acidic hydrogen atom
d) Terminal alkynes are more acidic when compared with alkenes
Q6. Polymerisation product of propyne is ______. b) Mesitylene
a) Benzene
b) Mesitylene
c) Ethyl benzene
d) Propyl benzene
Q7. Which among the following alkynes is used as a rocket fuel? b) Propyne
a) Ethyne
b) Propyne
c) But-1-yne
d) Pent-1-yne
Q8. The major alkyne, acetylene compound is produced by which among the following application on natural gas? d) Partial oxidation
a) Cracking
b) Hydrogenation
c) Hydrohalogenation
d) Partial oxidation
Q9. Which of the following is used for welding? b) C2H2
a) CH4
b) C2H2
c) C2H6
d) C2H4
Q10. Which among the following product is formed when ethyne undergoes hydrogenation? a) Acetaldehyde
a) Acetaldehyde
b) Formaldehyde
c) Acetic acid
d) Formic acid
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