NEET Chemistry is the very imporatant paper in the Medical Entrance EXAM. So these NEET Chemistry MCQs with Answers for all Concepts as per the new syllabus. Practice daily with these NEET Chemistry objective questions on air pollution. NEET Chemistry Alkyne Multiple Choice Questions
MCQs on Alkyne :
1. Ethyne and Ethane can be separated from a mixture by passing it through
(A) Pyrogallol
(B) Charcoal powder
(C) Concentrated H2SO4
(D) Ammonical Cu2Cl2
Answer
Answer: (d)
2. 1-butyne and 2-butyne can be identified by using which of the following reagents?
(A) O2
(B) Br2
(C) NaNH2
(D) HCl
Answer
Answer: (c)
3. Which of the following is used for welding?
(A) CH4
(B) C2H2
(C) C2H6
(D) C2H4
Answer
Answer: (b)
4. The product formed in the reaction of propyne with dilute H2SO4 and HgSO4 is
(A) Propyl hydrogen sulphate
(B) Propanone
(C) Propanal
(D) Propanol
Answer
Answer: (b)
5. Polymerisation product of propyne is
(A) Benzene
(B) Ethyl benzene
(C) Propyl benzene
(D) Mesitylene
Answer
Answer: (d)
6. The product formed in the reaction of ethyne with dilute H2SO4 and Hg2+ is
(A) Ethyl hydrogen sulphate
(B) Methoxymethane
(C) Ethanal
(D) Ethanol
Answer
Answer: (c)
7. In the ozonolysis reaction, acetylene forms
(A) Formaldehyde
(B) Glycol
(C) Glyoxal, formic acid
(D) None of the above
Answer
Answer: (c)
8. Acetylene is oxidised by KMnO4 to form
(A) Acetic acid
(B) Ethyl alcohol
(C) Ethylene glycol
(D) Oxalic acid
Answer
Answer: (d)
9. Find Z in the following reaction
(A) Ethyl bromide
(B) Ethylene bromide
(C) Ethylidene bromide
(D) Ethanol
Answer
Answer: (a)
10. When ethyne is passed through a red hot tube, _______ is formed
(A) Cyclohexane
(B) Neoprene
(C) Benzene
(D) Ethane
Answer
Answer: (c)