Aldehydes and K...

Which of the following fail(s) to reduce Fehling ’s solution?

Which of the following reagents can be used for the separation of a mixture containing CH₃ CHO and CH₃ CN?

One mole of a symmetrical alkane on ozonolysis gives two moles of an aldehyde having molecular mass of 44u. The alkene is: 

Which compound(s) given below, upon acid hydrolysis gives a compound that forms a yellow precipitate with KOH/I₂ solution?

Comprehension Type

Direction (Q. Nos. 5 - 7) This section contains a paragraph, describing theory, experiments, data, etc.
Three questions related to the paragraph have been given. Each question has only one correct answer among the four given options (a), (b), (c) and (d).

Passage

A neutral organic compound A(C₁₀ H₂₀ O₂ ) neither reduces Tollen ’s reagent nor forms precipitate with 2, 4-dinitrophenyl hydrazine, but can be resolved into enantiomers. A on acid hydrolysis forms two compounds B and C, both are enantiomeric. C neither reduces Fehling ’s solution nor forms iodoform with alkaline iodine solution. C on oxidation with CrO₃ /HCI /pyridineforms D which is still resolvable into enantiomers. D on further treatment with aqueous (C₂ H₅ O)₃ Al solution gives back A.

Q. 

 How many different stereoisomers exist for A ?

A neutral organic compound A(C₁₀ H₂₀ O₂ ) neither reduces Tollen ’s reagent nor forms precipitate with 2, 4-dinitrophenyl hydrazine, but can be resolved into enantiomers. A on acid hydrolysis forms two compounds B and C, both are enantiomeric. C neither reduces Fehling ’s solution nor forms iodoform with alkaline iodine solution. C on oxidation with CrO₃ /HCI /pyridineforms D which is still resolvable into enantiomers. D on further treatment with aqueous (C₂ H₅ O)₃ Al solution gives back A.

Q. 

 What ist rue regarding D ?

A neutral organic compound A(C₁₀ H₂₀ O₂ ) neither reduces Tollen ’s reagent nor forms precipitate with 2, 4-dinitrophenyl hydrazine, but can be resolved into enantiomers. A on acid hydrolysis forms two compounds B and C, both are enantiomeric. C neither reduces Fehling ’s solution nor forms iodoform with alkaline iodine solution. C on oxidation with CrO₃ /HCI /pyridineforms D which is still resolvable into enantiomers. D on further treatment with aqueous (C₂ H₅ O)₃ Al solution gives back A.

Q. 

The correct statement regarding the following reaction is

CH₃ CHO and C₆ H₅ CH₂ CHO can be distinguished chemically by:

How many different isomers of C₅ H₈ O, on treatment with 2, 4-dinitrophenyl hydrazine gives orange precipitate?

One mole of an organic compound 'A 'with the formula C₃ H₈ O reacts completely with two moles of HI to form X and Y. When 'Y 'is boiled with aqueous alkali it forms Z. Z answers the iodoform test. The compound 'A 'is ______.

Matching List Type

Direction (Q. No. 11) Choices for the correct combination of elements from Column I and Column II are given as options (a), (b), (c) and (d), out of which one is correct.

Q.

Match the qualitative tests listed in Column I with compounds from Column II that gives positive response to these tests and mark the correct option from the codes given below.