Download App

8.2 Carboxylic acids and their derivative — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistry8.2 Carboxylic acids and their derivative1 Mark
MCQ
Which one is used as a food preservative
  • A
    Sodium acetate
  • B
    Sodium propionate
  • ✓
    Sodium benzoate
  • D
    Sodium oxalate
✓

Answer

Correct option: C.
Sodium benzoate
c
sodium benzoate is a substance which has the chemical formula $C _6 H _5 COO Na$.

It is a widely used food preservative. It is the sodium salt of benzoic acid and exists in this form when dissolved in water. If can be produced by reacting sodium hydroxide with benzoic acid.

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 8.2 Carboxylic acids and their derivative→8.2 Carboxylic acids and their derivative — all question types→Chemistry STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

Name the gas released at the cathode when acidulated water is electrolysed.
→
In $XeO_3F_2$, the number ofbond pair $(s)$, $\pi -$ bond $(s)$ and lone pair $(s)$ on $Xe$ atom respectively are:
→
Which one among the following chemical tests is used to distinguish monosaccharide from disaccharide?
→
Compound $\mathrm{A}$ formed in the following reaction reacts with $B$ gives the product $C$. Find out $A$ and $B$.
→
Compound $A$ and $B$, both were treated with $NaOH,$ producing a single  compound $C$.
→
Among the three isomers of the nitrophenol, the one that is least soluble in water is:
→
Match list $- I$ and List $- II.$

  List $-I$   List $-II$

$(a)$

 $\begin{array}{*{20}{c}}
  {O\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {||\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {R - C - Cl \to R - CHO} 
\end{array}$		 $(i)$

$Br _{2} / NaOH$
$(b)$ $\begin{array}{*{20}{c}}
  {R - C{H_2} - COOH \to R - CH - COOH} \\ 
  {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|} \\ 
  {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,Cl} 
\end{array}$		 $(ii)$ $H _{2} / Pd - BaSO _{4}$
$(c)$ $\begin{array}{*{20}{c}}
  {O\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {||\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {R - C - N{H_2} \to R - N{H_2}} 
\end{array}$		 $(iii)$ $Zn ( Hg ) /$ Conc. $HCl$
$(d)$ $\begin{array}{*{20}{c}}
  {O\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {||\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {R - C - C{H_3} \to R - C{H_2} - C{H_3}} 
\end{array}$		 $(iv)$ $Cl _{2}$ / Red $P , H _{2} O$

Choose the correct answer from the options given below:

→
$Y$ is
→
Amongst the following trihalide, which one is least basic?
→
The strongest $CO$ bond is present in
→