Aqueous solution of AlCl3 is acidic towards litmus while NaCl is not. The correct reason behind this is: a.) AlCl3 furnishes OH− ion in the solution. b.) AlCl3 furnishes H+ ion in the solution c.) AlCl3furnishes both OH−and H+ in the solution d.) AlCl3 is the salt of strong base and strong acid

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?