what is the formula of diesel,petrol & CNG too?

10 Answers   NTPC,

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What is positive testing in relation to chemistry? For example, the sentence reads "Sample solutions are solutions known to contain one of each of the following ions, silver ion, Ag+(aq), barium ion, Ba2+(aq), and iron (III) ion, Fe3+(aq). Testing solutions are the solutions containing a polyatomic ion that can react with one of the metal ions to give a positive test." I am then asked to define what a "positive test" is. I am currently a student who is pretty new to chemistry, please try and make your answer as simply as possible. Thanks for the help.

2 Answers   UST,

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Why does a match-stick burn, when struck against the match-box surface

3 Answers  

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Why do we feel chilly in damp clothes ?

1 Answers  

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Explain the Modern Atomic Theory ?

3 Answers  

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what is the difference between heat and temperature?

4 Answers  

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Difference between heavy hydrogen , Atom Hydrogen and Hydrogen Ion ?

2 Answers  

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What is the chemical composition of diamond ?

2 Answers  

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pH is having unit?

8 Answers   Cipla,

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Acid rain is caused due to pollution of atmosphere by

3 Answers   SSC,

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If the stopper if a bottle has stuck, sometimes it may be removed by heating the neck, why ?

1 Answers  

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What is an indicator electrode?

0 Answers  

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