MCQ
Lewis acid
- APresence of $H$ atom is necessary
- BIs a electron pair donor
- CAlways a proton donor
- ✓Is a electron pair acceptor
✓
Answer
Correct option: D.
Is a electron pair acceptor
d
Lewis acids accept an electron pair. Lewis Acids are electrophilic meaning that they are electron attracting. When bonding with a base the acid uses its lowest unoccupied molecular orbital or $LUMO$.
Lewis acids accept an electron pair. Lewis Acids are electrophilic meaning that they are electron attracting. When bonding with a base the acid uses its lowest unoccupied molecular orbital or $LUMO$.
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
The reaction rate at a given temperature becomes slower, then
Unknown $(A)$ in the reaction
→Select the correct matching
→| List $I$ | List $II$ | ||
| $A$ | $XeF_4$ | $1$ | Pyramidal |
| $B$ | $XeF_6$ | $2$ | $T-$ shape |
| $C$ | $XeO_3$ | $3$ | Distorted octahedral |
| $D$ | $XeOF_2$ | $4$ | Square planar |
Urea upon hydrolysis yields
Oxidation state of oxygen in ${F_2}O$ is
→An ideal gas expands isothermally from $10^{-3} \;\mathrm{m}^{3}$ to $10^{-2} \;\mathrm{m}^{3}$ at $300 \;\mathrm{K}$ against a constant pressure of $10^{5}\; \mathrm{Nm}^{-2} .$ The work done on the gas is
→Kolbe-Schmidt reaction is used for
When collagen is boiled with water, it forms
The equivalent conductance of monobasic acid at infinite dilution is $348\, ohm^{-1}\, cm^2\, eq^{-1}$. If the resistivity of the solution containing $15\, g$ acid ($mol.\, wt. 49$) in $1\, litre$ is $18.5\, ohm\, cm$. What is the degree of dissociation of acid? .............. $\%$
→Isopropyl alcohol on oxidation forms