MEDIUM
Earn 100

The pH value of gastric juice in human stomach is about 1.8 and in the small intestine it is about 7.8. The value of aspirin is 3.5. Aspirin will be
(a)Completely ionized in the small intestine and in the stomach.
(b)Unionized in the small intestine and in the stomach.
(c)Ionized in the small intestine and almost unionized in the stomach.
(d)Ionized in the stomach and almost unionized in the small intestine.

50% studentsanswered this correctly
Important Questions on Aldehydes, Ketones and Carboxylic Acids
MEDIUM
Among -chloro propanoic acid, -chloro propanoic acid, -dichloro acetic acid and propanoic acid the values will be in the order,

EASY
Give the chemical equation for the reaction of with following:

MEDIUM
Consider the acid strength of the of carboxylic acids
(i)
(ii)
(iii)
(iv)

MEDIUM
The major product of the following chemical reaction is :

HARD
With dehydrating agent present which dicarboxylic acid is least reactive towards forming an anhydride?

MEDIUM
The following transformation
can be carried out in three steps. The reagents required for these three steps in their correct order, are:

EASY
Name the end product in the following series of reactions ections

EASY
Maleic anhydride
Maleic anhydride can be prepared by :

HARD
The major product of the following reaction is:


HARD
The most suitable reagent for the given conversion is:



EASY
Which of the following carboxylic acids has highest acidic strength?

MEDIUM
The major product obtained in the reaction of aniline with acetic anhydride is

EASY
The compound(s), capable of producing achiral compound on heating at is/are

EASY
Which of the following is the correct sequence of relative acidic strength?

EASY
Acetic acid in liquid ammonia behaves as

MEDIUM
In which one of the following cases will the -hydrogen NOT be abstracted on treatment with one equivalent of base?

MEDIUM
In set of reactions, identify

HARD
List includes starting materials and reagents of selected chemical reactions. Listgives structures of compounds that may be formed as intermediate products and/or final products from the reactions of List.
List-I | List-II |
---|---|
(I) ![]() |
![]() |
(II) ![]() |
![]() |
(III) ![]() |
![]() |
(IV) ![]() |
![]() |
![]() |
|
![]() |
Which of the following options has the correct combination considering List and List?

MEDIUM
The major product of the following reaction is:


MEDIUM
An organic compound A upon reacting with gives B. On heating, B gives C. C in presence of KOH reacts with Br2 to give CH3CH2NH2. A is :

