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Answer 1

Answer:

3. i) (c) Zinc, Zn as it have d¹⁰ configuration

ii) (d) Cobalt, Co as it have partially filled d-orbital

iii) (b) Outer transition elements as they site in extra-transitional portion of periodic table

iv) (d) number of protons or atomic number z

v) (c) Cr, Mo, W

vi) (d) [Pt(NH3)4(NO2)Cl]SO4 is correctly written in respect to order of attachment

vii) (c) cast iron (2-4.5%) > steel (0.25-2%) > wrought iron (0.12-0.25%)

viii) (a) d-d transition of electrons

ix) (d) 6 as 4NH3, 1 NO2 and 1 Cl group is attached and making 6 coordination number

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