Question

what is mole concept in 11th class ncert

Answer 1

Avogadro’s number may be defined as the number of atoms present in one gram atom of the element or the number of molecules present in one gram molecule of the substance.
A mole is a chemist unit of counting particles such as atom, molecules, ions, electrons, protons which represent a value of 6.022 × 1023
A mole is defined as that amount of substance which has mass equal to gram atomic mass if the substance is atomic or gram molecular mass if the substance is molecular.

This is mole concept

hope it helps you

Answer 2

mole concept refers to a branch of organic and inorganic chemistry which deals with amount of molecules in moles takes participation in a reaction and how many molecules liberated etc..