MCQ
Alkaline hydrolysis of esters is known as
- ✓Saponification
- BHydration
- CEsterification
- DAlkalisation
✓
Answer
Correct option: A.
Saponification
a
The alkaline hydrolysis of ester is known as saponification. When ester is heated with aqueous $NaOH$, sodium salt of acid and alcohol are formed.
The alkaline hydrolysis of ester is known as saponification. When ester is heated with aqueous $NaOH$, sodium salt of acid and alcohol are formed.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
In an atom, an electron is moving with a speed of $600 \,m/s$ with an accuracy of $0.005\%.$ Certainity with which the position of the electron can be located is $( h =6.6 \times 10^{-34} \,kg\, m^2s^{-1},$ mass of electron, $e_m= 9.1 \times 10^{-31}\, kg)$ :
→Crystal field stablization energy for complex $[Co(CN)_6]^{-3}$ will be
→A metal $(A)$ on heating in nitrogen gas gives compound $B$. $B$ on treatment with $\mathrm{H}_{2} \mathrm{O}$ gives a colourless gas which when passed through $\mathrm{CuSO}_{4}$ solution gives a dark blue-violet coloured solution. $A$ and $B$ respectively, are
→According to heisenberg uncertainty principle
The stepwise formation of $\left[ Cu \left( NH _{3}\right)_{4}\right]^{2+}$ is given below
→$Cu ^{2+}+ NH _{3} \stackrel{ K _{1}}{\rightleftharpoons}\left[ Cu \left( NH _{3}\right)\right]^{2+}$
$\left[ Cu \left( NH _{3}\right)\right]^{2+}+ NH _{3} \stackrel{ K _{2}}{\rightleftharpoons}\left[ Cu \left( NH _{3}\right)_{2}\right]^{2+}$
$\left[ Cu \left( NH _{3}\right)_{2}\right]^{2+}+ NH _{3} \stackrel{ K _{3}}{\rightleftharpoons}\left[ Cu \left( NH _{3}\right)_{3}\right]^{2+}$
$\left[ Cu \left( NH _{3}\right)_{3}\right]^{2+}+ NH _{3} \stackrel{ K _{4}}{\rightleftharpoons}\left[ Cu \left( NH _{3}\right)_{4}\right]^{2+}$
The value of stability constants $K _{1}, K _{2}, K _{3}$ and $K _{4}$ are $10^{4}, 1.58 \times 10^{3}, 5 \times 10^{2}$ and $10^{2}$ respectively. The overall equilibrium constants for dissociation of $\left[ Cu \left( NH _{3}\right)_{4}\right]^{2+}$ is $x \times 10^{-12}$ The value of $x$ is ...............
(Rounded off to the nearest integer)
In $LiAlH_4,$ metal $Al$ is present in
→For a particular reaction variation of rate constant with temperature is given by
→$\ln {k_t} = \ln {k_0} + \left( {\frac{{\ln \left( {\frac{5}{2}} \right)}}{{10}}} \right) \times t\left( {t \geqslant 0{}\,^0C} \right)$
$K_0$ =rate constant at $0\,^o C$ ; $k_t$ = rate constant at $t\,^o C$
Temperature coefficient of reaction, assuming that the rate constant increases same number of times on each $10\,^oC$ rise in temperature, is
Which quantum number will determine the shape of the subshell
Olefins can be hydrogenated by
In which of the following transformations, the bond order has increased and the magnetic behaviour has changed ?