what is the difference between simple distillation and differential distillation

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Observe the following number to four significant figures and express the result in standard exponential notation: 0.006543210?

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i am going to face exam for the post of executive trainee (chemistry) in M.P Power generation company,i want to know the level of exam ,type of questions can be asked,and about any book whigh i can refer.

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Explain the protein in chemistry?

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Explain the difference between hcl acid and hcl gas?

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what is hardnes & how hardnes can be analysed.

3 Answers   Thermax,

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what is reaction of sodium borohydride and HCl gas..?

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What is a tripod?

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Define a hydrogen bond?

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Explain why do some medications contain hcl?

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What is ciprofloxacin hcl?

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Suppose u have combipack product and u get 2 or more peaks which are other than there placebo then what we can do

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