Question

सुरेश एक दृष्टिबाधित छात्र है वह किन-किन सूचकों का प्रयोग कर अम्ल एवं क्षार की पहचान कर सकता है?​

Answer 1

$\rm\huge\underline{Answer}$

the branch of science concerned with the substances of which matter is composed, the investigation of their properties and reactions, and the use of such reactions to form new substances.