Chemistry
Which of the following is the best reagent to distinguish between ethylene and acetylene ?
P — Bromine water
Q — Ammoniacal silver nitrate solution
R — Acidified potassium dichromate solution
- Only P
- Only Q
- Both P and Q
- Both Q and R
Organic Chemistry
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Answer
Only Q
Reason — Acetylene reacts with ammoniacal silver nitrate solution to give white precipitate of silver acetylide. Whereas, ethylene gives no reaction with ammoniacal silver nitrate solution.
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Related Questions
The IUPAC name of methyl acetylene is:
- Propyne
- Ethene
- Propane
- Ethyne
The structures of four hydrocarbons are shown below:
How many isomers of butene are there?
- 1
- 2
- 3
- 4
Which of the following molecule contains C=C bond between adjacent carbon atoms ?
P — C4H8
Q — C3H4
R — C3H6
- Only P
- Only R
- Both P and R
- Both P and Q
Assertion (A): Carbon shows catenation.
Reason (R): Catenation is the property of self linking by covalent bonds.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.