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100xvii. The color of Mn 2+ in hydrated form is:14 d and f - block elements transition elements(a) Blue (b) Yellow (c) Light Pink (d) Greenxviii. Which of the following metals show more than one oxidation state?(a) Al (b) Mg (c) Fe (d) Caxix. Iron is used as a catalyst in:(a) Brikland Process(c) Haber Process(b) Contact Process(d) both b and cxx. During the reaction of Ammonia with iron, it acts as both a base and a:(a) Ligand (b) Acid (c) Iron (d) Salt2. Give brief answers for the following questions.i. Why are d-block elements called transition elements?ii.iii.iv.Why do the d-block elements show different oxidation states?Why does Mn show the maximum number of oxidation states in 3d-series?What is the difference between double salts and coordination or complexcompounds?v. Explain the following terms: (a) Ligand (b) Coordination Sphere (c) Central Metal.vi.vii.How chromate ions are converted into dichromate ions?What is the difference between paramagnetism and diamagnetism?viii. What are advantages of Potassium dichromate in titrations?ix.How does dichromate ion converted in to chromate ions.3. Give detailed answers for the following questions.i. (a) What is the valence shell configuration of transition elements? How does it affectthe following properties? (i) Binding energy (ii) Paramagnetism (iii) oxidation statesii.(b) What are typical and non-typical transition elements?(c) Explain catalytic Activity of transition elements.(d) Write composition, properties and uses of: Brass, Bronze and Nichrome alloys.(a) Explain different types of ligand with examples(b) Describe the rules for naming the coordination complexes with examples.iii. (a) Explain shapes and origin of colors of coordination compounds.(b) Relate the coordination number of ions to the crystal structure of the component ofwhich they are a part.iv. (a) Write systematic names to following complexes:(i) [Co(NH3)6]Cl3 (ii) [Fe(H2O)6] 2+ (iii) Na3[CoF6](iv) [Cr(OH)3(H2O)3] (v) K2[PtCl6] (vi) [Pt(OH)2(NH3)4]SO4
v14 d and f - block elements transition elements(vii) K2[Cu(CN)4] (viii) Na2[NiCl4] (ix) Pt(NH3)2Cl4 (x) [Ag(NH3)2]Cl(b) Write chemical formulae of following complexes:(i) Potassiumhexacyanoferrate (II)(ii) Sodium tetrachloronickelate (II)(iii) Tetrammine copper (II) Sulphate(iv) Potassium hexachloroplatinate (IV)(v) Dichlorotetrammine cobalt (III) Chloride(a) Discuss vanadium (V) oxide as a catalyst with example.(b) How does chromium (III) changes to chromium (VI)?(c) Discuss potassium dichromate (VI) and Potassium manganate (VII) as an oxidizingagent in organic chemistry.101
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Textbook ofChemistryGrade 12
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OUR MOTTOStandards Outcomes Access
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CONTENTSNo. Chapter Name P. No.1314
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13 s and p - Block ElementsP [Ne] 3
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913 s and p - Block Elements(b) Phy
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13 s and p - Block ElementsArgonArg
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13 s and p - Block ElementsSulphurS
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13 s and p - Block ElementsThose ox
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13 s and p - Block Elements17Fig 13
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13 s and p - Block ElementsWith hot
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13 s and p - Block ElementsChlorine
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13 s and p - Block ElementsThe alum
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13 s and p - Block Elements13.1.6 H
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13 s and p - Block ElementsNotice t
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13 s and p - Block ElementsThe tabl
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13 s and p - Block ElementsIf the t
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13 s and p - Block ElementsRb red (
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I2I1 + I213 s and p - Block Element
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13 s and p - Block ElementsCalcium,
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13 s and p - Block ElementsThis is
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13 s and p - Block Elements9. Behav
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13 s and p - Block Elements13.4.2 T
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13 s and p - Block ElementsThis fir
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13 s and p - Block ElementsWe know
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Page 111 and 112: 15 Organic CompoundsNitrileMethyle
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Page 115 and 116: 15 Organic Compounds113C) Detection
Page 117 and 118: 15 Organic Compounds115iii. Which o
Page 119 and 120: 16 Hydrocarbons11716.1 TYPES OF HYD
Page 121 and 122: 16 Hydrocarbons119orororQuick Quiz1
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Page 129 and 130: 16 Hydrocarbons127shown again below
Page 131 and 132: 16 Hydrocarbons129Activity1. Name t
Page 133 and 134: 16 Hydrocarbons1312. Dehydrohalogen
Page 135 and 136: 16 Hydrocarbons133HydrationAddition
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16 Hydrocarbons151BrominationChlori
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16 Hydrocarbons153CumeneDisubstitut
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16 Hydrocarbons155These are two equ
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16 Hydrocarbons157Thus molecule of
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16 Hydrocarbons159(c) Addition of H
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16 Hydrocarbons161Explanation and E
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16 Hydrocarbons163SulfonationThe in
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16 Hydrocarbons165Friedel-Crafts Al
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16 Hydrocarbons167On the other hand
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16 Hydrocarbons169SOCIETY, TECHNOLO
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16 Hydrocarbons171Exercise1. The mo
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16 Hydrocarbons1732. How will you p
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17 Alkyl Halides and Amines175(ii)
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17 Alkyl Halides and Amines17.1.3.
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17917 Alkyl Halides and AminesThe e
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17 Alkyl Halides and AminesMechanis
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17 Alkyl Halides and Amines(5)(6)(7
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17 Alkyl Halides and AminesThe atta
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17 Alkyl Halides and Amines1871. Wh
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17 Alkyl Halides and Amines189CH 3I
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17 Alkyl Halides and Amines191Anili
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17 Alkyl Halides and AminesThis rea
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17 Alkyl Halides and AminesAlkylati
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17 Alkyl Halides and Amines197Key P
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17 Alkyl Halides and Aminesiv. Tert
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