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Question: Compounds capable of reacting with ammoniacal \(AgN{O_3}\) solution are 1) \(C{H_3} - CH(C{H_3}) -...

Compounds capable of reacting with ammoniacal AgNO3AgN{O_3} solution are

  1. CH3−CH(CH3)−C≡CHC{H_3} - CH(C{H_3}) - C \equiv CH
  2. HC≡CHHC \equiv CH
  3. 1 - {\text{1 - }}Butyne
  4. All the above
Explanation

Solution

The reagent ammoniacal AgNO3AgN{O_3} solution is called Tollens reagent. One can analyze the given compounds in the options and react with an ammoniacal AgNO3AgN{O_3} solution and see which can give a positive result for Tollens reagent.

Complete step by step answer:

  1. First of all we will learn about the reagent given in the question which is an ammoniacal AgNO3AgN{O_3} solution. The ammoniacal AgNO3AgN{O_3} solution is also called the Tollens reagent and this reagent is used for the identification of specific functional groups in a molecule.
  2. The Tollens reagent gives a positive test only for the structure which has terminal alkynes present in it. The terminal alkyne means the carbon-carbon triple bond which is present between the carbon no one and two in a structure.
  3. Now let's analyze the given structures and see which structures have the terminal alkyne present in its structure. The 1st structure CH3−CH(CH3)−C≡CHC{H_3} - CH(C{H_3}) - C \equiv CH has the alkyne at the 1st carbon hence, it shows the positive result for Tollen’s reagent.
  4. The 2nd structure HC≡CHHC \equiv CH has an alkyne functional group which is terminal. Hence, this also gives a positive test for reagent ammoniacal AgNO3AgN{O_3} solution.
  5. The 3rd structure 1 - {\text{1 - }}Butyne has an alkyne group present in it at the 1st carbon which is also the terminal position. Hence, this structure also gives a positive test for reagent ammoniacal AgNO3AgN{O_3} solution.
  6. Therefore, the compounds given in all three options are capable of reacting with an ammoniacal AgNO3AgN{O_3} solution that is all of the above which shows option D as the correct choice.

So, the correct answer is Option D.

Note: When the terminal alkynes are reacted with a reagent ammoniacal AgNO3AgN{O_3} solution that is Tollens reagent, it produces precipitate in the reaction solution as the product. As the Tollens reagent has AgNO3AgN{O_3} as its composition it is used for silver mirroring to glassware products.