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Question:
(a) Explain the potential health risk which composting will pose to workers or to those located near a facility.
(b) A number of concerns have been shown in regard to risk assessment and waste management. Show fully the four main stages in the systematic approach to risk assessment.
(c) With regards to public health and environmental protection a properly designed and operated landfill should offer advantages in several areas. Describe briefly five advantages.
Determine the purpose of Quenching Quenching is most generally used to harden steel by introducing martensite, in which case steel should be rapidly cooled through its eutect
Q. What do you mean by Isomers? Ans. Compounds like butane and 2-methylpropane which have the same molecular formula but different molecular structures are called isomers
What is piezoelectricity Piezoelectricity provides us a means of converting electrical energy to presume new geometric positions and mechanical dimensions of the substance are
Distillation under reduced pressure - Purification of organic compounds This process is employed for the purification of high boiling liquids and liquids that decompose at o
definition of milli equivalent
In Bohr's model, atomic radius of the first orbit is γ the radius of the 3rd orbit, is: (1) γ/ 3 (2)γ (3) 3γ (4) 9γ Ans: 9γ
The frequency of yellow light having wavelength 600 nm is: (1) 5.0x10 14 Hz (2) 2.5 x 10 7 Hz (3) 5.0x 10 7 Hz
polymers based upon availabilty
Why does methyl ethanoate not give iodoform test while ethyl ethanoate does? Ans) Iodoform test for esters is the test given by its products on hydrolysis methyl ethanoate give
It can be because these group tend to decrease the electron density when attached to a benzene or other ring structure preferentially at ortho and pera position.
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