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Coordination Compounds · Question 52

NEET 2013 (Karnataka)MCQEasy📈 Topic in 25% papers+4−1
1

The correct IUPAC name for [CrF2(en)2]Cl is

  1. chloro difluorido ethylene diaminechromium (III) chloride
  2. difluoridobis (ethylene diamine) chromium (III) chloride
  3. difluorobis-(ethylene diamine) chromium (III) chloride
  4. chloro difluoridobis (ethylene diamine) chromium (III)

Answer

(2) difluoridobis (ethylene diamine) chromium (III) chloride

Solution

Complex cation: [CrF2(en)2]+; counter ion: Cl- (outside the sphere, named last as chloride).

Oxidation state of Cr: x + 2(-1) + 2(0) = +1 ⇒ x = +3

Ligands in alphabetical order: fluorido (×2 ⇒ difluorido), ethane-1,2-diamine (×2 ⇒ bis(ethane-1,2-diamine)).

⇒ Difluoridobis(ethane-1,2-diamine)chromium(III) chloride, i.e. difluoridobis(ethylene diamine)chromium(III) chloride.

Answer: (2)

NEET 2013 (Karnataka)

Keep practising — Coordination Compounds

2

Which among the following is a paramagnetic complex?

  1. [Co(NH3)6]3+
  2. [Pt(en)Cl2]
  3. [CoBr4]2-
  4. Mo(CO)6
NEET 2013 (Karnataka)
3

Which is diamagnetic?

  1. [Co(F)6]3-
  2. [Ni(CN)4]2-
  3. [NiCl4]2-
  4. [Fe(CN)6]3-
NEET 2013 (Karnataka)
4

Low spin complex of d6-cation in an octahedral field will have the following energy

  1. -125 o + P
  2. -125 o + 3P
  3. -25 o + 2P
  4. -25 o + P
AIPMT 2012 (Mains)
5

Red precipitate is obtained when ethanol solution of dimethylglyoxime is added to ammoniacal Ni(II). Which of the following statements is not true? [figure]

  1. Red complex has a square planar geometry.
  2. Complex has symmetrical H-bonding.
  3. Red complex has a tetrahedral geometry.
  4. Dimethylglyoxime functions as bidentate ligand.
AIPMT 2012 (Mains)
6

Which one of the following is an outer orbital complex and exhibits paramagnetic behaviour?

  1. [Ni(NH3)6]2+
  2. [Zn(NH3)6]2+
  3. [Cr(NH3)6]3+
  4. [Co(NH3)6]3+
AIPMT 2012 (Prelims)
7

Which of the following carbonyls will have the strongest C–O bond?

  1. Cr(CO)6
  2. Fe(CO)5
  3. [Mn(CO)6]+
  4. [V(CO)6]-
AIPMT 2011 (Mains)
8

Which of the following complex compounds will exhibit highest paramagnetic behaviour? (At. No. Ti = 22, Cr = 24, Co = 27, Zn = 30)

  1. [Cr(NH3)6]3+
  2. [Co(NH3)6]3+
  3. [Zn(NH3)6]2+
  4. [Ti(NH3)6]3+
AIPMT 2011 (Mains)
9

Of the following complex ions, which is diamagnetic in nature?

  1. [NiCl4]2-
  2. [Ni(CN)4]2-
  3. [CuCl4]2-
  4. [CoF6]3-
AIPMT 2011 (Prelims)
10

The complexes [Co(NH3)6][Cr(CN)6] and [Cr(NH3)6][Co(CN)6] are the examples of which type of isomerism?

  1. Linkage isomerism
  2. Ionization isomerism
  3. Coordination isomerism
  4. Geometrical isomerism
AIPMT 2011 (Prelims)
11

The complex, [Pt(Py)(NH3)BrCl] will have how many geometrical isomers?

  1. 3
  2. 4
  3. 0
  4. 2
AIPMT 2011 (Prelims)

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