CBSE Board 2022-23 - Test Assignment 1 | Science | Class 10th Q.1. You are given balls and stick model of six carbon atoms and fourteen hydrogen atoms and sufficient number of sticks. In how many ways one can join the models of six carbon atoms and fourteen hydrogen…

Q.2. A compound which is prepared from gypsum has the property of hardening when mixed with a proper quantity of water. Identify the compound and write its chemical formula. Write the chemical equation for its preparation. Mention any one use of the compound.         …

NCERT Test 1 | Chapter 4 | Carbon and its compounds | CBSE    Chapter 4 (Carbon and its compounds)   Time: 55 min.                                                                      Marks: 25 Instructions:  1. Keep Quite 2. Focus on understanding question and givin…

CBSE Class 10th Term 2 - Test Assignment - CHEMISTRY (Chapter – 4,5)                         Marks: 30   Q.1. Write the molecular formula of the 2nd and 3 rd  member of the homologous series whose first  member is ethene.                                             …

Class 10th Science | Chapter 2  | Acid, Bases and Salts | Support Material | Assignment Test Questions VERY SHORT QUESTIONS (1 Mark) 1. Name the acid present in ant sting. 2. What happens when egg shell is added to nitric acid? 3. Name a salt w…

Class 10 th  | Chapter 1 | Chemical Reactions And Equations | Support Material | Assignment Questions Very Short Answer QUESTIONs (1 Marks): Q. 1 The shiny finish of wall after white wash is because of. a) Calcium oxide                b) Calcium hydroxid…