Here r the answers susman:
1) 4 the first question we carry out the same experiment again 4 chlorophyll pure sample and measure the Rf value and then carry the chromatography of the green solution and also measure the Rf values 4 the spots. see which Rf value matches with chlorophyll or is at the same height as the pure chlorophyll dot.
2) i did metal phosphate like u susman T3(PO4)2 but i had a different xplanation.
3)the graph of ammonia is inverse
4)in the exo thingy i added the first 2 bond energies and then subtracted (2*last bond energy) from it
5)groups in lactic acid are alcohol and carboxylic acid.and the compound which contains this type was fats or esters
6)in the PLA i wrote its biodegradable and doesnt give out toxic fumes like petrol
WAT IS THAT INDICATOR question u r discussing?
if it is that ques that has 1 mark then PH meter AND indicator are correct