Potassium and sodium react vigorously with oxygen in air and catch fire. These metals are stored under kerosene oil to prevent oxidation.

When the sulphur particles begin to form a colloidal solution is formed in the glass tank due to which short wavelength of light are scattered by the minute colloidal sulphur particles.

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

(i) the transport in xylem is achieved by utilising energy (ii) transpiration helps in the absorption of water and Minerals from the roots to leaves (iii) the transport of soluble products of photosynthesis in phloem. (iv) besides water, xylem also ...

Haemoglobin consist of the “Haem” group where the “Fe” atom is bonded as a central atom in the complex and it is present in the blood and the blood flows in the plasma. Hence, it is the combination of Plasma, ...