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Question 1:
(i) What are the main physical properties of hydrogen sulphide?
(ii) Which occupational group of workers is often exposed to hydrogen sulphide?
(iii) Outline two acute and four chronic health effects of human exposure to hydrogen sulphide.
(iv) Suggest four engineering and four administrative controls to hydrogen sulphide at workplaces.
Explain briefly the importance of material safety data sheet.
Suffix - IUPAC System of Naming Organic Compounds The word root is associated to the suffix that may be primary or secondary or both of them. (a) Primary suffix: A
Write down the chemical equations for the total burning of propane and butane gas in air. Show whether the substances are liquid (l), gaseous (g), or solid (s) under
The phosphate of a metal has the formula MPO4 .The formula of its nitrate will be: (1) MNO 3 (2) M 2 (NO 3 ) 2
how to calculate equivalent weight of LMnO4
introduction to esters ,preparation, proprties, and their uses in daily life
Ask qhow chemical eqlibrium establish uestion #Minimum 100 words accepted#
Define Product process problem in experimental design method In food product design, there are two different kinds of system problems - process and mixture problems - that shou
The electronic configuration of silver atom in ground state is: (1) [ Kr]3 d 10 4 s 1 (2) [Xe]4f 14 5d 10 6s 1 (3) [ Kr]4d 10 5 s
what is the chemistry behind haloform reactions?
Why wet test not perform for some acid radicals ?
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