MCQ
Formula of soap is:
  • A
    $\mathrm{C}_{16} \mathrm{H}_{32} \mathrm{COONa}$
  • $\mathrm{C}_{17} \mathrm{H}_{35} \mathrm{COONa}$
  • C
    $\mathrm{C}_{17} \mathrm{H}_{33} \mathrm{COONa}$
  • D
    $\mathrm{C}_{17} \mathrm{H}_{36} \mathrm{COONa}$

Answer

Correct option: B.
$\mathrm{C}_{17} \mathrm{H}_{35} \mathrm{COONa}$
Soaps are sodium or potassium salts of long $-$ chain carboxylic acids.
The formula for soap is $\mathrm{C}_{17} \mathrm{H}_{35} \mathrm{COONa}$.

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

Similar questions

For the disproportionation reaction $2 Cu ^{+}( aq ) \rightleftharpoons Cu ( s )+ Cu ^{2+}( aq )$ at $298\, K$ In $K$ (where $K$ is the equilibrium constant) is....... $\times 10^{-1}$

Given $\left( E _{ Cu ^{2+} / Cu ^{+}}^{0}=0.16 V \right.$ $E _{ Cu ^{+} / Cu }^{0}=0.52 V$$\left.\frac{ RT }{ F }=0.025\right)$

Which oxide of nitrogen is coloured gas
If $0.228 \,g$ of silver salt of dibasic acid gave a residue of $0.162\,g$ of silver on ignition then molecular weight of the acid is
Given below are two statements:

Statement $I$ : Acidity of $\alpha$-hydrogens of aldehydes and ketones is responsible for Aldol reaction.

Statement $II$ : Reaction between benzaldehyde and ethanal will $NOT$ give Cross - Aldol product. In the light of above statements, choose the most appropriate answer from the options given below.

Vapour pressure of a pure liquid $X$ is $\text{2 atm}$ at $300K.$ It is lowered to $\text{atm}$ on dissolving $1 g$ of $Y$ in $20g$ of liquid $X.$ If molar mass of $X$ is $200,$ what is the molar mass of $Y?$
Acetaldehyde can be used for making synthetic:
How many total number of substituents are present in the following compound ?
Match List$-I$ with List$-II$

  List$-I$   List$-II$
$(a)$ Sucrose $(i)$

$\beta$ -D-Galactose and $\beta$ -D-Glucose

$(b)$ Lactose $(ii)$ $\alpha$ -D-Glucose and $\beta$ -D-Fructose
$(c)$ Maltose $(iii)$ $\alpha$ -D-Glucose and $\alpha$ -D-Glucose

Choose the correct answer from the options given below:

An aqueous solution of an halogen salt of potassium reacts with same halogen $X_2$ to give $KX_3,$ a browncoloured solution, in which halogen exists as $X_3^-$ ion, $X_2$ as a Lewis acid and $X^-$ as a Lewis base, halogen $X$ is
Which of the following combination does not evolve $Cl_2$ gas?