Each question carries one mark 1 Define transition elements Ans Transition element is defined as the one which has incompletely filled d Ans The d block elements are in the middle of s and p blocks, comprising the groups 3 to 12
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Zinc, cadmium and mercury of group 12 have full d10 configuration in their ground state as well as in their common oxidation states and hence, are not regarded
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This results in half filled 3d5 orbital which in turn results in extra stability 8 2 Occurrences and general characteristics of transition elements Q 12 State the
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A transition element may also be defined as the element which partially filled d- orbital in Crystal field stabilization is very important with the d- bloc elements
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CBSE Class 12 Chemistry Important Questions-D & F Block ElementsSay of Element Isolation Chapter 7: P-Block elements Chapter 8: D- and f- Block
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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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Define transition elements. Ans. Transition element is defined as the one which has incompletely filled d orbitals in its ground state or in any one of its
Various precious metals such as silver gold and platinum and industrially important metals like iron
The d-block of the periodic table contains the elements of the groups 3-12 in which the d orbitals are progressively filled in each of the four long periods
Answer: Page 2. Class 12 https://www.adda247.com/school. NCERT Solutions. Mn2+ has stable halg field electronic configuration therefore Mn2+ compounds are more
Identify compounds A to D and also explain the reactions involved. 23/04/18. Page 12. 116. Exemplar Problems
Some Important Chemical Reaction in Organic Chemistry CBSE SAMPLE QUESTION PAPER WITH MARKING SCHEME ... Unit VIII: d and f Block Elements 7 Periods.
(iv) They are chemically inert. (xii) Alloy Formation. Alloy is the homogeneous mixture of two or more metals. Transition metals have approximate
NCERT Solutions for Class 12 Chemistry Chapter 8. The d- and f-Block Elements. Q 8.3: Explain briefly how +2 state becomes more and more stable in the first
11. Some p -Block. Elements. Some important compounds: Borax Boric acid
Unit VIII: d and f. Block Elements. • Some important compounds of Transition elements. • The Lanthanoids: Chemical reactivity of lanthanoids.
and f- Block Elements I. Answer the following questions. Each