cbsenotes • 2022-12-23
Class 8 - Chemistry - Case Study-Based QuestionsChapter: Chemical Effects of CurrentDirections: Read the following and answer the questions given below:Case StudyTake out carbon rods carefully from tw
cbsenotes • 2022-12-07
Class 8 Science – Coal and PetroleumVery Short Answer Type Questions1. Name three useful products of coal.2. Which product of coal is used as a reducing agent in the extraction of metals?3. Name the
cbsenotes • 2021-12-21
CBSE Class 8 Science - Combustion and Flame - Worksheet-2Fill in the blanks with suitable words.1. ________ gas in air is essential for combustion.2. A chemical process in which a substance reacts wit
cbsenotes • 2021-09-08
CBSE Class 8 Chemistry - Metals and Non-Metals (MCQs) Q1: All metals are solids except: (a) Sodium(b) Calcium(c) Mercury(d) CopperQ2: Which of the following metal does not react with dilute
cbsenotes • 2021-04-22
CBSE Class 8 - Chemistry - Synthetic Fibres and Plastics - Plastics Uses and Its Impact on Environment (Q and A)Q1: What is a plastic?Answer: Plastic is also a polymer like the synthetic fibre. All pl