MCQ
Which of the following conversions involves change in both shape and hybridisation?
  • A
    ${H_2}O\, \to \,{H_3}{O^ + }$
  • $B{F_3}\, \to \,BF_4^ - $
  • C
    $C{H_4}\, \to \,{C_2}{H_6}$
  • D
    $N{H_3}\, \to \,NH_4^ + $

Answer

Correct option: B.
$B{F_3}\, \to \,BF_4^ - $
b
$B{F_3}\, \to \,BF_4^ - $

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

Given, $HF + H_2O \rightleftharpoons H_3O^+ + F^-; K_a$

$F^-+ H_2O \rightleftharpoons HF + OH^-; K_b$
which relation is correct

In the Newman projection for $2,2$-dimethylbutane $Image$ ${X}$ and ${Y}$ can respectively be

$(A)$ $\mathrm{H}$ and $\mathrm{H}$

$(B)$ $\mathrm{H}$ and $\mathrm{C}_2 \mathrm{H}_5$

$(C)$ $\mathrm{C}_2 \mathrm{H}_5$ and $\mathrm{H}$

$(D)$ $\mathrm{CH}_3$ and $\mathrm{CH}_3$

If the bond energies of $H - H$, $Br - Br$ and $HBr$ are $ 433, 192$ and $364$  $kJ\,mo{l^{ - 1}}$ respectively, the $\Delta {H^o}$ for the reaction, ${H_2}(g) + B{r_2}(g) \to 2HBr(g)$ is.....$kJ$
Given below are two statements : one is labelled as Assertion $A$ and the other is labelled as Reason $R$:

Assertion $A$: In the photoelectric effect, the electrons are ejected from the metal surface as soon as the beam of light of frequency greater than threshold frequency strikes the surface.

Reason $R$ : When the photon of any energy strikes an electron in the atom, transfer of energy from the photon to the electron takes place.

In the light of the above statements, choose the most appropriate answer from the options given below :

Oxidation number of carbon in (CN)2​ is _____.
If ${10^{21}}$ molecules are removed from $200\,mg $ of $C{O_2}$, then the number of moles of $C{O_2}$ left are ..........$\times {10^{ - 3}}$
Number of sp hybridised carbon atom in the given compound is :

$C{H_2} = CH - C \equiv C - C{H_2} - CN$

Given below are two statements:

Statement $I :$ Bohr's theory accounts for the stability and line spectrum of $Li ^{+}$ ion.

Statement $II :$ Bohr's theory was unable to explain the splitting of spectral lines in the presence of a magnetic field.

In the light of the above statements, choose the most appropriate answer from the options given below:

The $IUPAC$ name of the compound is
Name of the compound given below is