The text book of Lakhmir Singh And Manjit Kaur for Class 10 Physics gives the students a detailed picture about each and every chapter. This is the best book for your class 10 science preparation. We are providing you the detailed solutions for chapter 3 Sources of Energy for free. Don’t forget to check out the links for other … Read more
Very Short Answer Type Questions Page no: 220 1. Name the element whose one of the allotropic forms is buckminsterfullerene. Solution: Carbon is the element whose one of the allotropic forms is buckminsterfullerene. 2. What are the two properties of carbon which lead to the formation of a large number of carbon compounds? Solution: Catenation (Self … Read more
Very Short Answer Type Questions Page no: 281 1. (a) On what basis did Mendeleev arrange the element in his periodic table. (b) On what basis are they arranged now? Solution: (a) On the basis of atomic masses Mendeleev arranged the element in his periodic table. (b) Now arranged on the basis of atomic numbers. … Read more
Very Short Answer Type Questions Page no: 131 1. Name one metal and one non-metal which exist in liquid state at room temperature. Solution: Mercury is the metal and bromine is the non metal which exist ion liquid state at room temperature 2. Why are metals called electropositive elements whereas non-metals are called electronegative elements? … Read more
