Web1 Important Questions for CBSE Class 12 Chemistry – The d- and f- Block Elements. 1.1 PREVIOUS YEARS QUESTIONS; 1.2 2015; 1.3 Very Short Answer Type Questions [1 …
Important Questions for CBSE Class 12 Chemistry - The d- and f- Block …
WebJun 19, 2024 · Question 10. In curing cement plasters, water is sprinkled from time to time. This helps in. (a) Converting sand into silicic acid. (b) Keeping it cool. (c) Developing interlocking like crystals of hydrated silicates. (d) Hydrating sand and gravel mixed with cement. Answer. Question 11. WebOct 21, 2024 · The s-block elements of the Periodic Table are those in which the last electron enters the outermost s-orbital. As the s-orbital can accommodate only two electrons, two groups (1 & 2) belong to the s-block of the Periodic Table. Group-1 of periodic table contains : Lithium (Li), Sodium (Na), Potassium (K), Rubidium (Rb), … diameter of a hula hoop
MCQ Questions for Class 9 Civics: Chapter 2 Constitutional …
WebJul 7, 2024 · Question 10. If the diagonals of a rhombus are 12 cm and 5 cm, find the perimeter of the rhombus. Solution: Given: d 1 = 12 cm, d 2 = 5 cm The perimeter = 4 × side = 4 × 6.5 = 26 cm Hence, the perimeter = 26 cm. Mensuration Class 8 Extra Questions Short Answer Type. Question 11. The volume of a box is 13400 cm 3. The area of its … WebFeb 3, 2024 · 1 Open the Styles and Formatting window. 2. In the document, select an item that has the format you want to adopt as a style. 3. In the Styles and Formatting window, select the style you want to update (single-click, not double-click), then long-click on the arrow next to the New Style from Selection icon and click on Update Style. 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 diameter of an artery