MCQ
Which one of the following complexes exhibit chirality?
- ✓$[Cr(ox)_3]^3$
- Bcis $-[PtCl_2(en)]$
- Ccis $-[RhCl(NH_3)_4]^+$
- Dmer $-[Co(NO_2)_3(dien)]$
✓
Answer
Correct option: A.
$[Cr(ox)_3]^3$
a
The complex $\left[ Cr ( ox )_3\right]^3$ contains no symmetry element and is chiral. It can be resolved into $d$ and $l$ form.
The complex $\left[ Cr ( ox )_3\right]^3$ contains no symmetry element and is chiral. It can be resolved into $d$ and $l$ form.
The complexes cis $-\left[ PtCl _2( en )\right]$, cis $-\left[ RhCl _2\left( NH _3\right)_4\right]^{+}$andmer $-\left[ Co \left( NO _2\right)_3(\right.$ dien $\left.)\right]$ contain symmetry elements and are achiral.
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 statements are INCORRECT?
→$A$. All the transition metals except scandium form $MO$ oxides which are ionic.
$B$. The highest oxidation number corresponding to the group number in transition metal oxides is attained in $Sc _2 O _3$ to $Mn _2 O _7$.
$C$. Basic character increases from $V _2 O _3$ to $V _2 O _4$ to $V _2 O _5$.
$D$. $V _2 O _4$ dissolves in acids to give $VO _4^{3-}$ salts.
$E$. $CrO$ is basic but $Cr _2 O _3$ is amphoteric.
Choose the correct answer from the options given below:
$STATEMENT-1$: Aniline on reaction with $\mathrm{NaNO}_2 / \mathrm{HCl}$ at $0^{\circ} \mathrm{C}$ followed by coupling with $\beta$-naphthol gives a dark blue coloured precipitate. and
→$STATEMENT-2$: The colour of the compound formed in the reaction of aniline with $\mathrm{NaNO}_2 / \mathrm{HCl}$ at $0^{\circ} \mathrm{C}$ followed by coupling with $\beta$-naphthol is due to the extended conjugation.
$\underset{{{C}_{5}}{{H}_{10}}O}{\mathop{(A)}}\,\xrightarrow{{{H}_{3}}{{O}^{\oplus }}}B+C;\,(B)$ and $(C)$ both give $+ve$ iodoform test. Compound $(A)$ is
→Acetone reacts with ${I_2}$ in presence of $NaOH$ to form
→When sugar ' $X$ ' is boiled with dilute $H _{2} SO _{4}$ in alcoholic solution, two isomers ' $A$ ' and ' $B$ ' are formed. $'A'$ on oxidation with $HNO _{3}$ yields saccharic acid where as ' $B$ ' is laevorotatory. The compound ' $X$ ' is ....... .
→The most stable complex among the following is
What are the products obtained from the. following reaction ?
Co-ordination number of $Fe$ in the complexes ${\left[ {Fe{{\left( {CN} \right)}_6}} \right]^{4 - }},$ ${\left[ {Fe{{\left( {CN} \right)}_6}} \right]^{3 - }}$ and ${\left[ {FeC{l_4}} \right]^ - }$ would be respectively
→Peroxo acids of sulphur are
When vapour of ethanol are passed over platinised asbestos in excess of air, the compound formed is