Esters are organic compounds having the characteristic smell of flowers and fruits. The formation of an ester is given below. CH_(3)CH_(2)COOH+HOCH_(2)CH_(3)rarrCH_(3)CH_(2)COOCH_(2)CH_(3)+H_(2)O a) identify the acid and alcohol in the reaction. b) Write the chemical equation of the reaction taking place when CH_(3)CH_(2)COOH is replaced by ethanoic acid(CH_(3)COOH)

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?