[PDF] [PDF] questions TRANSITION METALS: GENERAL - Chemguide

[PDF] questions TRANSITION METALS: GENERAL - Chemguide

Chemguide – questions TRANSITION METALS: GENERAL FEATURES 1 a) Write the electronic structure of the following transition metal atoms using the short 

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Answers:- Very short answer questions:- Q 1 To aquire nearest noble gas configuration Q 2 In transition elements electron enter into penultimate shell and in 

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However, the transition elements are not easy to predict Compare your answers for questions 2 3 with the names of the compounds given in the information 

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Q2) Answer the following 2/3 Marks each 1) What are transition element? Explain the following properties of these elements a) Colour b) Magnetic properties

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A transition element contains an incomplete d sub-‐level in one or more of its oxidation states Zinc loses the two 4s electrons to form zinc(II) compounds

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KnowIT questions – AQA GCSE Atomic Structure the Periodic Table better hope transition elements react slowly with these reagents if at all 6 State two 

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Where answers to these questions teristic of transition elements, especially variable oxidation states We In the transition elements you study metals which

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26 juil 2020 · (NCERT Based Questions with Answers ) Ganesh Kumar for all elements present in the first transition series All metals present in 

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C h e m g u i d e - q u e s t i o n s

TRANSITION METALS: GENERAL FEATURES

1.a) Write the electronic structure of the following transition metal atoms using the short form in

which, for example, Co would be [Ar]3d74s2. Use this small bit of the Periodic Table (taken from the Chemguide page) for the atomic numbers. (i) Cu(ii) Ti(iii) Zn(iv) Cr b) Write the electronic structures of the following ions using the same short form as above. (i) Fe2+(ii) Fe3+(iii) V3+(iv) Ni2+(v) Cu2+

2.Explain the difference between the terms transition metal and d-block element.

3.a) Transition metals show variable oxidation states. Give examples of two different oxidation states

shown by manganese in its compounds. In each case, give the oxidation state, and an example of a compound or ion containing manganese in that oxidation state.

b) The first three ionisation energies for calcium and iron (in kJ mol-1) are shown in this table taken

from the Chemguide page. (i) Both calcium and iron form a 2+ ion rather than a 1+ ion, despite the fact that a 2+ ion needs a lot more ionisation energy than a 1+ ion. Explain why the 2+ ion is formed rather than the 1+. (ii) Explain why iron can form a 3+ ion whereas calcium only forms a 2+ ion. www.chemguide.co.uk

C h e m g u i d e - q u e s t i o n s

4.Copper forms three common complex ions: [Cu(H2O)6]2+, [Cu(NH3)4(H2O)2]2+ and [CuCl4]2-.

a) What is the general name given to groups such as water, ammonia or chloride ions which surround the central metal ion? b) How are these groups bound to the central metal ion? c) What colours are the [Cu(H2O)6]2+ and [Cu(NH3)4(H2O)2]2+ ions?

5.Transition metals and their compounds are frequently used as catalysts.

a) Name the catalyst in the Haber Process for the manufacture of ammonia. b) Name the catalyst used in the hydrogenation of carbon-carbon double bonds. c) Name the catalyst in the Contact Process for the manufacture of sulphuric acid. www.chemguide.co.ukquotesdbs_dbs5.pdfusesText_9