Download App

9. Amines — Chemistry STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceChemistry9. Amines1 Mark
MCQ
Urea upon hydrolysis yields
  • A
    acetamide
  • ✓
    carbonic acid
  • C
    ammonium hydroxide
  • D
    $NO_2$
✓

Answer

Correct option: B.
carbonic acid
b
$\begin{matrix}
   O  \\
   ||  \\
   N{{H}_{2}}-C-N{{H}_{2}}  \\
\end{matrix}$ $\xrightarrow[\text{acid or base}]{\text{hydrolysis}}$ $C{{O}_{2}}+2{{H}_{3}}\xrightarrow{{{H}_{2}}O}\underset{\text{Carbonic acid}}{\mathop{{{H}_{2}}C{{O}_{3}}}}\,$

Note: The enzyme urease (occurs in soyabean) brings about the same change

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from 9. Amines→9. Amines — all question types→Chemistry STD 12 Science question papers→CBSE Board STD 12 Science question papers→CBSE Board question paper generator→

Similar questions

Butter is an emulsion of type:
→
For a $A g-Z n$ button cell, net reaction is $Z n(s)+A g_{2} O(s) \operatorname{Zn} O(s)+2 A g(s)$

$\Delta G_{f}^{o}\left(A g_{2} O\right)=-11.21\, kJ\,mol ^{-1}$

$\Delta G_{f}^{o}(Z n O)=-318.3\, kJ \,mol ^{-1}$

Then, $E^{o}$ cell of the button cell is.........$V$

→
In vulcanisation of rubber,
→
Williamson's synthesis is used for the preparation of
→
When ammonia reacts with sodium hypochlorite, product containing nitrogen is
→
Strong reducing behaviour of $H_3PO_2$ is due to
→
Polyacrylamide gel is prepared by mixing acrylamide and $........$ at fixed proportions.
→
The secondary structure of a protein refers to
→
Consider the following complex ions, $P, Q$ and $R$.

$P =\left[ FeF _6\right]^{3-}, Q =\left[ V \left( H _2 O \right)_6\right]^{2+} \text { and } R =\left[ Fe \left( H _2 O \right)_6\right]^{2+} \text {. }$

The correct order of the complex ions, according to their spin-only magnetic moment values (in $B.M.$) is

→
Benzoic acid undergoes dimerisation in benzene solution. The van't Hoff factor $(i)$ is related to the  degree of association ' $x^{\prime}$ of the acid as
→