Aluminium does not react with water at room temperature but reacts with both dil . Hcl and NaOH solutions . Verify these statements experimentally . Write your observation with chemiscal equation , From these observations , can we concluds that Al is a metalloid ?

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?