Class 10th Science Session 2022-23 Class 10 Science Terminal Exams MCQ Solutions Class X Science MCQ Extra Questions Answers 10th Science Terminal Exam Based MCQ Extra Questions

Aerobic respiration occurs in mitochondria. Since the process take place in presence of air or oxygen, it is called aerobic respiration.

During inhalation, the air for the respiration is drawn into our body through the nostrils, then it goes into nasal passage. From there, oxygen enters into pharynx, larynx then into the windpipe, bronchi, lungs and finally to the alveoli where ...

The chemical reaction is as follows: Na₂CO₃(aq) + 2HCl (aq) → 2NaCl + H₂O + CO₂

The given reaction shows that “Q” is the most reactive as it has replaced both “P” and “R” from their compounds.