Water absorber used in combustion analysis is___________________?

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Which of the following solution has the highest boiling point ?

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Which one of the following fertilizers provides the nitrogen and phosphorus to the plant ?

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The mass of one mole of electron is________________?

A. 1.008 B. 0.55 C. 0.184 D. 1.637...

When toluene reacts with chlorine in sunlight the first major product is__________________?

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Which one of the following is not a good leaving group ?

A. HSO4- B. Cl- C. OH- D. Br-...