Home
Class 11
CHEMISTRY
Which (------COOH) group is lost as CO(2...

Which (------COOH) group is lost as `CO_(2)` on heating in the following?
i. ii.

Text Solution

Verified by Experts

i. (----COOH) at C -1 is lost easily on heating because there is (C=O) group at `beta`-position of C -1, (COOH) group.
ii. (----COOH) at C -1 is lost because there is (-----`NO_(2)`) group at `beta`-position of C -1, (COOH) group.
iii. Both (-----COOH) group at c -1 and C -4 are lost because there is double bond at `beta`-position of both (-----COOH) groups.
iv. One (-----COOH) group is lost from C -1 position, since two (----COOH) groups are present on the same C atom. Further, (----COOH) group at C -4 is also lost on heating, because there is (----CN) group at the `beta`-position of (----COOH) group at C -4.
Promotional Banner

Topper's Solved these Questions

  • ALKANES AND CYCLOALKANES

    CENGAGE CHEMISTRY ENGLISH|Exercise SOLVED EXAMPLES|19 Videos

  • ALKANES AND CYCLOALKANES

    CENGAGE CHEMISTRY ENGLISH|Exercise EXERCISES|24 Videos

  • ALKENES AND ALKADIENES

    CENGAGE CHEMISTRY ENGLISH|Exercise Single correct Answer|14 Videos

Similar Questions

Explore conceptually related problems

Which (------COOH) group is easaily decarboxylated on heating and why?

On heating which of the following release CO_(2) most easily ?

Which of the following carbonates does not evolve CO_(2) on heating?

(a) Explain the phenomena of multiple allelism and co-dominance taking ABO blood group as an example. (b) What is the phenotype of the following : (i)I^Ai (ii) i i

The first element of group different form its congeners, i.e. other members of the group in many ways. These differences may be due to the following: i. Small size of atom and ion. ii. High electronegativity. iii. Non-availability of low lying d-orbitals. The first element of a group shows resemblance with the second element of the adjacent group on the right. This is known as diagonal relationship. On heating which of the following gives NO_(2) ?

(a) Write the structures of A and B in the following reactions : (i) CH_(3)COCl overset(H_2, Pd-BaSO_(4))(to)A overset(H_(2)N-OH)(to)B (ii) CH_(3)MgBr overset(1.CO_(2))underset(2.H_(3)O^+)(to)A overset(PCl_(5))(to)B (b) Distinguish between : (i) C_(6)H_(5)-COCH_(3) " and "C_(6)H_(5)-CHO (ii) CH_(3)COOH " and " HCOOH (c) Arrange the following in the increasing order of their boiling points : (i) CH_(3)CHO, CH_(3)COOH, CH_(3)CH_(2)OH

Which of the following is the strongest -I group :

identify the group 2 element 'X' in each of the following (i) The chemistry of X is quite different from that of other element in the group. (ii) 'X' forms organometallic compound RXBr. Which is very widely used?