Pakistan's best MCQs practice hub — FPSC · PPSC · CSS · NTS · Other Exams
Login

What term describes a chemical reaction that absorbs heat energy from its surroundings as it proceeds, such as photosynthesis?

AOxidation reaction only
BEndothermic reaction
CExothermic reaction
DCombustion reaction only

Explanation

An endothermic reaction is a chemical reaction that absorbs energy, usually in the form of heat, from its surroundings as it proceeds, often causing a noticeable drop in temperature in the immediate area. Photosynthesis is a classic example, since plants absorb light energy from the sun to drive the chemical reaction that produces glucose and oxygen from carbon dioxide and water. Certain cold packs used for treating injuries also rely on an endothermic reaction, absorbing heat from the skin to produce a cooling sensation. Explore more Everyday Science MCQs on mcqstutor to keep practicing.

Submitted by: mcqstutor Team More Everyday Science MCQs →

No Comments

Leave a comment

Your email address will not be published. Required fields are marked *