Cryoscopic constant of a liquid is: A. Decrease in freezing point when 1 gram of solute is dissolved per kg of the solvent. B. Decrease in the freezing point when 1 mole of solute is dissolved per kg of the solvent. C. The elevation for 1 molar solution D. A factor used for calculation of elevation in boiling point

What type of questions asked from the lesson of magnetic effect of electric current 

Wavelength of green light is

A) 400-450 nm

B) 500-550 nm

C) 660-720 nm

D) 720-800 nm

What is the difference between anaerobic & aerobic respiration? Name some organism that uses the aerobic mode of respiration?

What are the main components of our environment? Explain each of them briefly.

What are examples of hydrotropism plants?