MCQ
Which ion is not coloured
- A$C{r^{3 + }}$
- B$C{o^{2 + }}$
- C$C{r^{2 + }}$
- ✓$C{u^ + }$
✓
Answer
Correct option: D.
$C{u^ + }$
d
(d)$C{u^ + }$do not have any unpaired electron.
(d)$C{u^ + }$do not have any unpaired electron.
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
Select correct statement $(s)$ about differentiation floatation.
→Pick out from the following complex compounds, a poor electrolytic conductor in solution
The magnetic moments of complexes given below are in the order
→$(I)\,[Ni(CO)_4]$ $(II)\, [Mn(CN)_6]^{4-}$ $(III)\, [Cr(NH_3)_6]^{3+}$ $(IV) \,[CoF_6]^{3 -}$
The correct order of the following compounds showing increasing tendency towards nucleophilic substitution reaction is :-
Given below are two statements: one is labelled as Assertion $A$ and the other is labelled as Reason $R$.
→Assertion $A :$ Dipole-dipole interactions are the only non-covalent interactions, resulting in hydrogen bond formation.
Reason $R$ : Fluorine is the most electronegative element and hydrogen bonds in $HF$ are symmetrical.
In the light of the above statements, choose the most appropriate answer from the options given below.
Product $(A)$ is
→The compound which does not give aldol condensation :
The coordination number of a metal in coordination compounds is
The polymer, which is the constituent of cotton is:
Product $(B)$ of the above reaction is
→