Which of the following may be colourless
Which of the following may be colourless
- A
$C{r^{ + 3}}$
- B
$C{u^ + }$
- C
$F{e^{ + 3}}$
- D
$C{u^{2 + }}$
Similar Questions
The transition element that has lowest enthalpy of atomisation is
The transition element that has lowest enthalpy of atomisation is
- [JEE MAIN 2019]
Given below are two statements, one is labelled as Assertion $A$ and the other is labelled as Reason $R$.
Assertion $A:$ The spin only magnetic moment value for $\left[ Fe ( CN )_6\right]^{3-}$ is $1.74 BM$, whereas for $\left[ Fe \left( H _2 O \right)_6\right]^{3+}$ is $5.92\,BM$.
Reason $R :$ In both complexes, $Fe$ is present in +3 oxidation state.
In the light of the above statements, choose the correct answer from the options given below:
Given below are two statements, one is labelled as Assertion $A$ and the other is labelled as Reason $R$.
Assertion $A:$ The spin only magnetic moment value for $\left[ Fe ( CN )_6\right]^{3-}$ is $1.74 BM$, whereas for $\left[ Fe \left( H _2 O \right)_6\right]^{3+}$ is $5.92\,BM$.
Reason $R :$ In both complexes, $Fe$ is present in +3 oxidation state.
In the light of the above statements, choose the correct answer from the options given below:
- [JEE MAIN 2023]
Correct statement for $3d-$ series is
Correct statement for $3d-$ series is
A pink colored salt on dry heating becomes blue in colour. Salt may contain
A pink colored salt on dry heating becomes blue in colour. Salt may contain
The correct order of the first ionization enthalpies is
The correct order of the first ionization enthalpies is
- [JEE MAIN 2019]