MCQ
Which of the following molecules acts as a Lewis acid ?
- A$(CH_3)_2O$
- B$(CH_3)_3P$
- C$(CH_3)_3N$
- ✓$(CH_3)_3B$
✓
Answer
Correct option: D.
$(CH_3)_3B$
d
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
Which of the following is the correct order of chemical reactivity with water according to electrochemical series?
Which of the following has more unpaired $d$-electrons
→Carbocation which is most stable
In case of $\ce{Na}$ metal if the number of $\ce{Na}$ atom increases, the difference in energy between successive $\ce{MOs}$ in $\ce{Na(Na)_n}$ molecules :
→Number of $\sigma $ and $\pi $ bonds in propane $ -1, 2, 3-$ tricarboxylic acid are
→In Heisenberg's uncertainty equation $\Delta x \times \Delta p \ge \frac{h}{{4\pi }}$; $\Delta p$ stands for
→Sodium extract gives blood red colour when treated with $\ce{FeCl_3}$. Formation of blood red colour confirms the presence of:
→Choose the correct option for the following molecule in view of chemical bonding
Decreasing order of stability of following carbocations is
→$(A)$ $m-CH_3OPhCH_2^+$ $(B)$ $p-CH_3OPhCH_2^+$ $(C)$ $PhCH_2^+$ $(D)$ $p-NO_2PhCH_2^+$
A compound contains $2.8\%$ $Fe$ by mass. If the compound contains single $Fe$ atom in its one molecule, then the molar mass $(g/mol)$ of the compound is $(Fe = 56\, amu)$
→