CBSE Class 10 Science question paper in Board Exam 2020 will have one-fourth of the questions of objective type. These questions will be in the form of multiple choice type questions (MCQ), very short ...

Highly reactive chemicals include those that have the potential to vigorously polymerize, undergo a vigorous condensation or oxidation-reduction reaction, or become self-reactive due to shock, ...

Personal protective equipment (PPE) is used to supplement engineering controls (such as laboratory ventilation and laser interlocks) and good work practices and is an important component of laboratory ...