CBSE Class 10 Science – Chapter 11: The Human Eye And Colourful World – Detailed Notes & Explanation
Human Eye: Human eye is a natural optical instrument which is used to see objects by human beings. It acts like a camera which has a[…]
CBSE Class 10 Science – Chapter 10: Light Reflection And Refraction – Detailed Notes & Explanation
Light: Light is a type of electromagnetic radiation that allows the human eye to see or makes objects visible. It is also defined as visible radiation[…]
CBSE Class 10 Science – Chapter 4: Carbon And Its Compounds – Detailed Notes & Explanation
Introduction Carbon (non-metal) Latin word Carbon = Coal Earth crust has only 0.02% carbon in the form of minerals. (Like carbonates, hydrogen carbonates, coal and[…]
CBSE Class 10 Science – Chapter 3: Metals And Non-Metals – Detailed Notes & Explanation
Introduction Around 114 total elements were present in the periodic table. As of 2016, the periodic table has 118 confirmed elements, from element-1 (Hydrogen) to[…]
A metal ‘X’ is used in thermite process. When X is burnt in air it gives an amphoteric oxide ‘Y’. ‘X’ and ‘Y’ are respectively :
https://www.youtube.com/watch?v=RD6qPT9rf3g Explanation: Here, the metal used in the thermite process is aluminium (Al). When aluminium is burned in air, it produces aluminium oxide (Al₂O₃), which[…]
MnO₂ + x HCl → MnCl₂ + y H₂O + z Cl₂
In order to balance the above chemical equation, the values of x, y and z respectively are : a) 6, 2, 2 b) 4, 1,[…]
In domestic electric circuits the wiring with 15 A current rating is for the electric devices which have
https://youtu.be/InsmjBcIrY0 This question is about which type of electrical devices are typically connected to wiring with a 15 amp current rating in domestic electric circuits.[…]
If four identical resistors, of resistance 8 ohm, are first connected in series so as to give an effective resistance Rs, and then connected in parallel so as to give an effective resistance Rp, then the ratio Rp/Rs is
https://www.youtube.com/watch?v=Z0XB7oLo8ww The question is about resistors connected in series and parallel. It asks for the ratio of the effective resistance when the resistors are connected[…]
CBSE Class 10 Science – Chapter 2: Acids, Bases and Salts – Detailed Notes & Explanation
Indicators An indicator is a dye which changes color when it is added to an Acid or a Base. Some major types of acid – base indicators[…]
Class 10 CBSE Science – Chapter 1: Chemical Reactions & Equations – Detailed Notes & Explanation
Physical and Chemical Changes Physical Change – Physical change is a change in which only some of the physical properties of a substance undergoing change[…]
