Chemistry Class 12 NCERT Solutions: Chapter 9 Coordination Compounds Part 12

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Exercise:-2

Write the formulas for the following coordination compounds:

(i) Tetraamminediaquacobalt(III) chloride

(ii) Potassium tetracyanonickelate(II)

(iii) Tris(ethane−1,2−diamine) chromium(III) chloride

(iv) Amminebromidochloridonitrito-N-palatinate(II)

(v) Dichloridobis(ethane−1,2−diamine)platinum(IV) nitrate

(vi) Iron(III) hexacyanoferrate(II)

Answer:

(i)

(ii)

(iii)

(vi)

(v)

(vi)

Q: 2. Write the IUPAC names of the following coordination compounds:

(i)

(ii)

(iii)

(iv)

(v)

(vi)

Answer:

(i) Hexaamminecobalt(III) chloride

(ii) Pentaamminechloridocobalt(III) chloride

(iii) Potassium hexacyanoferrate(III)

(iv) Potassium trioxalatoferrate(III)

(v) Potassium tetrachloropalladate(II)

(vi) Diamminechloride (methylamine) platinum (II) chloride

Q: 3. Indicate the types of isomerism exhibited by the following complexes and draw the structures for these isomers:

I. ]

.

III.

IV.

Answer:

I. Both geometrical (cis-, trans) isomers for can exist. Also, optical isomers for cis-isomer exist.

Q 3 i Geometrical Isomers

Q 3 I Geometrical Isomers

Q 3 i Geometrical Isomers

Trans-isomer is optically inactive. On the other hand, cis-isomer is optically active.

Q 3 i 1 The Other Hand, Cis-Isomer is Optically Active

Q 3 I 1 the Other Hand, Cis-Isomer Is Optically Active

Q 3 i 1 The Other Hand, Cis-Isomer is Optically Active

(ii) Two optical isomers for exist.

Q 3 ii Two Optical Isomers

Q 3 Ii Two Optical Isomers

Q 3 ii Two Optical Isomers

Two optical isomers are possible for this structure.

Q 3 ii 1 Teo Optical Isomers are possible for this Structure

Q 3 Ii 1 Teo Optical Isomers Are Possible for This Structure

Q 3 ii 1 Teo Optical Isomers are possible for this Structure

(iii)

A pair of optical isomers:

Q 3 iii 1 A Pair of Optical Isomers

Q 3 Iii 1 a Pair of Optical Isomers

Q 3 iii 1 A Pair of Optical Isomers

It can also show linkage isomerism.

and It can also show ionization isomerism.

(iv) Geometrical (cis-trans-) isomers of can exist.

Q 3 ivi Geometrical (Cis-Trans)Isomers

Q 3 Ivi Geometrical (Cis-Trans)Isomers

Q 3 ivi Geometrical (Cis-Trans)Isomers