MCQ
Which of the following is the wrong statement?
- A$ONCl$ and $ONO^-$ are isoelectronic.
- B$O_3$ molecule is bent
- COzone is violet-black in solid state
- DOzone is diamagnetic gas.
✓
Answer
$(a)$ Number of electrons in
$ \mathrm{ONCl}=3.2 \mathrm{e}^{-}$
$\mathrm{ONO}^{-}=24 \mathrm{e}^{-}$
Thus, $\ce{ONCl}$ and $\ce{ONO}-$ are not isoelectronic.
$(b) \mathrm{O}_{3}$ has bent shape structure. Central atom $O$ is $s p^{2}$ hybridised with $1$ lone pair of electrons.
$(c)$ Ozone is violet$-$black in solid state.
$(d) O_{3}$ has no unpaired electrons, thus it is diamagnetic.
$ \mathrm{ONCl}=3.2 \mathrm{e}^{-}$
$\mathrm{ONO}^{-}=24 \mathrm{e}^{-}$
Thus, $\ce{ONCl}$ and $\ce{ONO}-$ are not isoelectronic.
$(b) \mathrm{O}_{3}$ has bent shape structure. Central atom $O$ is $s p^{2}$ hybridised with $1$ lone pair of electrons.
$(c)$ Ozone is violet$-$black in solid state.
$(d) O_{3}$ has no unpaired electrons, thus it is diamagnetic.
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
Total number of stereo isomers possible for the given structure:
→$Image$
A complex has a composition corresponding to the formula $CoBr_2Cl.4NH_3$. What is the structural formula if conductance measurements show two ions per formula unit? Silver nitrate solution given an immediate precipitate of $AgCl$ but no $AgBr $
→Which of the following compound has least $pK_a$ value
→Benzophenone does not react with
In which of the following reactions $H_2O_2$ acts as a reducing agent ?
→Which of the following chemicals are used to manufacture methyl isocyanate that caused ''Bhopal Tragedy''
→$(i)$ Methylamine $(ii)$ Phosgene
$(iii)$Phosphine $(iv)$ Dimethylamine
On the basis of the electrochemical theory of aqueous corrosion, the reaction occurring at the cathode is
Polarisation of electrons in acroline may be written as
The reaction $Pb \left( NO _3\right)_2$ and $NaCl$ in water produces a precipitate that dissolves upon the addition of $HCl$ of appropriate concentration. The dissolution of the precipitate is due to the formation of
→When phthalic acid is heated, phthalic anhydride is formed, $IUPAC$ name of phthalic anhydride is?
→