Answer / audupuru

charge formadehyde &Hydrobromic acid ,4-nitrophenol and
reflux it at 70c for 3hours.

Answer / savithareddy

4-nitrophenol reacted with hydrobromic acid and formaldehyde

what is a primary standard? what is a secondary standard solutions?

1 Answers   Practical Viva Questions,

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Distinguish b/w CH3CHO and CH3COCH3 on the basis of IR?

1 Answers  

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wHAT IS THE pH of pure water?

8 Answers   IIT,

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What is the range of uv & vis lamp in spectrophotometer?

0 Answers  

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how can you define the PH

17 Answers   Dr Reddys, Matrix, Piramal Healthcare, Reddy Labs, Sun Pharma,

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how to make a 100ml solution with given 10gm of naoh

6 Answers   Calyx, CCIL,

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Why carotene exhibits colour nature?

2 Answers   IIT,

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What is a proteic unit?

0 Answers   Granules India, IGCAR, TCS,

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i am serching new job please help me

1 Answers   IPCA,

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Protactinium-231 decays to Uranium-235. How is this decay used in radiometric dating and the determination of geological ages?

0 Answers  

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Geometrical Isomerism occurs in Alkenes only but not in Alkanes and Alkynes. Why?

6 Answers  

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i have 5liter 98% h2so4 now, i want to convert it in 92% by adding water....so...howmuch water i have to add ?

2 Answers   Infosys,

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