D and f block important questions learninsta
WebDec 6, 2024 · The d- and f-Block Elements Class 12 Important Questions Short Answer Type -I [SA – I] Question 6. Explain the following observations : (i) Generally there is an increase in density of elements … WebClass 12 D and F Block Elements Important Questions with Answers Short Answer Type Questions. Q1. Why does copper not replace …
D and f block important questions learninsta
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WebQuestion 1. (a) The interior of a triangle includes its vertices. (b) The triangular region includes the vertices of the corresponding triangle. (c) An equilateral triangle is isosceles also. (d) The sum of the measures of three angles of a triangle is greater than 180°. (e) It is possible to have a triangle in which two of the angles are obtuse. WebApr 10, 2024 · Work, Energy and Power Class 11 MCQs Questions with Answers. Question 1. A bullet is fired horizontally and gets embedded in a block kept on a table. If the table is frictionless, then. (a) only momentum is conserved. (b) only potential energy is conserved. (c) only K.E. is conserved. (d) both (a) and (b). Question 2.
WebContents1 Important Questions for CBSE Class 12 Chemistry – The d- and f- Block Elements1.1 PREVIOUS YEARS QUESTIONS1.2 20151.3 Very Short Answer Type Questions [1 Mark]1.4 Short Answer Type Questions [I] [2 Marks]1.5 Short Answer Type Questions [II] [3 Marks]1.6 20141.7 Very Short Answer Type Questions [1 Mark]1.8 … WebDec 6, 2024 · Question 7. What happens when bromine attacks (All India 2012) CH 2 = CH – CH 2 – C ≡ CH Answer: Question 8. Write the IUPAC name of the following : (All India 2012) Answer: IUPAC name : 3 Bromo-2-methyl propene. Question 9. Draw the structure of major monohalogen product formed in the following reaction : (Comptt. Delhi 2012) …
WebJan 26, 2024 · 8. What did the black population want in the new Constitution? (a) A black President. (b) Substantial social and economic rights. (c) Whites should be turned out of the country. (d) Apartheid for the whites. (b) Substantial social and economic rights. 9. During negotiations for making the Constitution, the whites agreed to. Question 1. How would you account for the increasing oxidising power in the series: V02+ < Cr207 2-< Mn04–? (CBSE Sample Paper 2010) Answer: This is due to the increasing stability of the lower species to which they are reduced. Question 2. Which metal in the first transition series exhibits a +1 … See more Question 1. Assign reasons for the following: (i) Cu(I) Is not known In an aqueous solution. Answer: Because of the Lesser hydration enthalpy of Cu(I), It Is unstable In an … See more Question 1. (i) Transition metals and their compounds are generally found to be good catalysts. (ii) Metal-metal bonding is more frequent for the … See more
WebSep 4, 2024 · Answer. Question 12. Fe 3+ ion is more stable than Fe 2+ ion because. (a) more the charge on the atom, more is its stability. (b) configuration of Fe 2+ is 3d 5 while …
WebJul 7, 2024 · Question 5. A class consists of 21 boys and 9 girls. A student is to be selected for social work. Find the probability that. (i) a girl is selected. (ii) a boy is selected. Solution: Sample space n (S) = 21 + 9 = 30. Number of girls n (E) = 9. freezers upright harvey normanWebThe d block elements are placed in the group 3-12 and F block element with 4f and 5f orbital filled progressively. General electronic configuration of d block elements is (n-1) d … freezers upright at costcoWebDec 6, 2024 · The d- and f-Block Elements Class 12 Important Questions Short Answer Type -I [SA – I] Question 6. Explain the following … fast3896-3x3_tlc_sw18.83.11.14g-4WebApr 3, 2024 · This changed his mood and he became happy and relaxed. Question 4. Narrate a simi lar experience of your life when nature intervened and changed your mood. Discuss. Answer: Normally, people thought both crow and hemlock tree are auspicious. But when the dust of snow from hemlock tree fell on poet he took it in other way. freezers upright sam\u0027s clubWebJul 12, 2024 · Answer. Question. H2S is more acidic than H2O because. (a) oxygen is more electronegative than sulphur. (b) atomic number of sulphur is higher than oxygen. (c) H—S bond dissociation energy is less as compared to H—O bond. (d) H—O bond dissociation energy is less also compared to H—S bond. Answer. Question. freezers upright walmartWebJun 11, 2024 · Answer: Dignity of citizens and principle of political equality. Question 7. Democracy cannot provide solution to all the problems, it is also a difficult form of government to implement. It is _______ . Answer: One of the weaknesses of democracy. Question 8. The major challenges to democracy are _______ . freezers upright sam\\u0027s clubWebApr 8, 2024 · The d-block of the periodic table includes group 3 to 12. The elements placed in the group 3 – 12 are called d-block elements. In these elements d-orbitals are … freezers upright stainless steel