Class 9 | Science | Chapter 4|Structure of the Atom | NCERT Solutions Page 47 1. What are canal rays? Answer: Canal rays are positively charged radiations. These rays consist of positively charged particles known as protons. They were discovered by Gold stein in 1886. 2. If an atom contains one electron and one proton, will it carry any charge or … [Read more...] about Chapter 4 Structure of the Atom
solution
Chapter 12 Friction
Class 8 | Science | Ch 12 |Friction| NCERT Solutions 1. Fill in the blanks. (a) Friction opposes the _____________ between the surfaces in contact with each other. (b) Friction depends on the _____________ of surfaces. (c) Friction produces __________. (d) Sprinkling of powder on the carrom board ________ friction. (e) Sliding friction is ___________ than the static … [Read more...] about Chapter 12 Friction
Mole concept in solutions
A solution is defined as a homogeneous mixture of two or more chemically non reacting substances, the relative amount of which can be varied up to a certain limit. If a solution consist of only two components it is called a binary solution. The component present in smaller amount is called solute while the other present in larger amount is called solvent The … [Read more...] about Mole concept in solutions