MCQ
Which of the following complex ions is not expected to absorb visible light?
- ✓$[Ni(CN)_4]^{2-}$
- B$[Cr(NH_3)_6]^{3+}$
- C$[Fe(H_2O)_6]^{2+}$
- D$[Ni(H_2O)_6]^{2+}$
✓
Answer
Correct option: A.
$[Ni(CN)_4]^{2-}$
a
A transition metal complex absorbs visible tight only if it has unpaired electrons.
A transition metal complex absorbs visible tight only if it has unpaired electrons.
No unpaired electron so does not absorb visible light.
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
Mixture($s$) showing positive deviation from Raoult's law at $35^{\circ} \mathrm{C}$ is(are)
→($A$) carbon tetrachloride + methanol ($B$) carbon disulphide + acetone ($C$) benzene + toluene ($D$) phenol + aniline
From the following statements regarding $H_2O_2,$ choose the incorrect statement :
→Number of compounds which give reaction with Hinsberg's reagent is____.
Which of the following is the outer orbital complex?
When chlorine water is exposed to sunlight, ${O_2}$ is liberated. Hence
→Paris green is
Consider the following statements: According the Werner's theory.
$(a)$ Ligands are connected to the metal ions by covalent bonds.
$(b)$ Secondary valencies have directional properties
$(c)$ Secondary valencies are non-ionisable Of these statements:
→$(a)$ Ligands are connected to the metal ions by covalent bonds.
$(b)$ Secondary valencies have directional properties
$(c)$ Secondary valencies are non-ionisable Of these statements:
Reagent $X$ in the given reaction is
→Which of the following carbohydrate $(s)$ would not undergo mutarotation in aqueous solution?
→Only an aldehyde having..... can undergo the aldol condensation