What are the deleted portions of science class 10 chapter electricity.
Answers
Answer:
CBSE Class 10 Science (086) - Deleted portion (Theory):
Unit I: Chemical Substances - Nature and Behaviour
Chapter
Topics
Metals and Non-metals
Basic metallurgical processes; Corrosion and its prevention.
Carbon Compounds
Nomenclature of carbon compounds containing functional groups (halogens, alcohol, ketones, aldehydes, alkanes and alkynes), difference between saturated hydro carbons and unsaturated hydrocarbons. Chemical properties of carbon compounds (combustion, oxidation, addition and substitution reaction). Ethanol and Ethanoic acid (only properties and uses), soaps and detergents.
Unit II: World of Living
Chapter
Topics
Control and co-ordination in animals and plants
(Whole Chapter Removed)
Tropic movements in plants; Introduction of plant hormones; Control and co-ordination in animals: Nervous system; Voluntary, involuntary and reflex action; Chemical co-ordination: animal hormones
Heredity and Evolution
Basic concepts of evolution
Unit III: Natural Phenomena
Chapter
Topics
The Human Eye and the Colourful World
Functioning of a lens in human eye, defects of vision and their corrections, applications of spherical mirrors and lenses
Unit IV: Effects of Current
Chapter
Topics
Magnetic Effects of Current :
Electric Generator, Direct current.
Alternating current: frequency of AC, Advantage of AC over DC.
Domestic electric circuits
Unit V: Natural Resources
Chapter
Topics
Sources of Energy
(Whole Chapter Deleted)
Different forms of energy, conventional and non-conventional sources of energy: Fossil fuels, solar energy; biogas; wind, water and tidal energy; Nuclear energy. Renewable versus non-renewable sources of Energy.
Management of Natural Resources
(This chapter is to be prepared only for Internal Assessment. It will not be assessed in the Annual Board Examination)
Conservation and judicious use of natural resources. Forest and wild life; Coal and Petroleum conservation. Examples of people’s participation for conservation of natural resources. Big dams: advantages and limitations; alternatives, if any. Water harvesting. Sustainability of natural resources.
Important* CBSE Class 10 Science Paper Pattern & Sample Paper for Board Exam 2021
Also check:
NCERT Book for CBSE Class 10 Science
NCERT Solutions for CBSE Class 10 Science
CBSE Class 10 Science Question Paper 2020
Previous Years Solved Question Papers for CBSE Class 10 Science
CBSE Class 10 Science Chapter-Wise MCQs & Answers for 2020-2021
Deleted Practicals:
1. A. Finding the pH of the following samples by using pH paper/universal indicator:
(i) Dilute Hydrochloric Acid
(ii) Dilute NaOH solution
(iii) Dilute Ethanoic Acid solution
(iv) Lemon juice
(v) Water
(vi) Dilute Hydrogen Carbonate solution
2. Determination of the equivalent resistance of two resistors when connected in series and parallel.
3. Preparing a temporary mount of a leaf peel to show stomata.
4. Study of the following properties of acetic acid (ethanoic acid):
i) Odour
ii) solubility in water
iii) effect on litmus
iv) reaction with Sodium Hydrogen Carbonate
5. Study of the comparative cleaning capacity of a sample of soap in soft and hard water.
6. Finding the image distance for varying object distances in case of a convex lens and drawing corresponding ray diagrams to show the nature of image formed.
7. Identification of the different parts of an embryo of a dicot seed (Pea, gram or red kidney bean).
Explanation: