CBSE Class 10 - Science - Sample Question Paper - (2017-18) (#cbsePapers)
CBSE Class 10 - Science - SampleQuestion Paper - (2017-18)
CBSE Class 10 - Science - SampleQuestion Paper - (2017-18)
CBSE Class 10 - Science - SA1Examination Paper - (2017-18)
PERIODIC CLASSIFICATION OF ELEMENTS (Concept Points) Modern Periodic Tablecredits: By Mbenzdabest (Own work) [CC BY-SA 4.0 ]- via Wikimedia Commons 1. Early chemists classified elements as
Carbon and its Compounds Important Points To Memorise 1. Carbon forms a large variety of compounds because of its tetra-valency and the property of catenation. 2. Hydrocarbons are the
Origin Of Life On Earth (Concept Points) ① Most scientists believed that life arose from nonliving matter- mostly from gases. It originated in primitive form in the oceans of the earth. ②