The compounds containing complex oxyanion $CrO_4^{2-}$ are intensely yellow coloured because
- AChromium ion in $CrO_4^{2-}$ is a transition metal ion
- B$Cr$ and $O$ are $\pi-$ bonded and the allowed $\pi \to \pi^*$ transition occurs in the visible region
- C$Cr \to O$ charge transfer is responsible for yellow colour
- DCompounds have strong absorption at $\sim 640 \ nm$
Explore More
Similar Questions
Given below are two statements:
Statement $I$ : $N(CH_3)_3$ and $P(CH_3)_3$ can act as ligands to form transition metal complexes.
Statement $II$: As $N$ and $P$ are from same group,the nature of bonding of $N(CH_3)_3$ and $P(CH_3)_3$ is always same with transition metals.
In the light of the above statements,choose the most appropriate answer from the options given below:
Statement $I$ : $N(CH_3)_3$ and $P(CH_3)_3$ can act as ligands to form transition metal complexes.
Statement $II$: As $N$ and $P$ are from same group,the nature of bonding of $N(CH_3)_3$ and $P(CH_3)_3$ is always same with transition metals.
In the light of the above statements,choose the most appropriate answer from the options given below:
$AlF_3$ is soluble in $HF$ only in the presence of $KF$. This is due to the formation of:
MediumNEET 2016
View Solution$A$ brown ring is formed in the ring test for $NO_{3}^{-}$ ion. It is due to the formation of :-
Difficult
View SolutionWhich of the following complex ions has the least stability?
In an ammoniacal solution,copper ions form the complex ion $[Cu(NH_3)_4]^{2+}$,but this does not occur in an acidic solution. The reason for this is:
Medium
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo