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Decarboxylation

How to find R...

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How to find R and S configuration in lactic acid , explain it with line structure?

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Similar questions

Q. What is lactic acid? Explain.

Q. ( + ) lactic acid and (-) lactic acid represent:

Q. (a) How carboxylate ion get stabilised by resonance? Explain by the structure.
(b) Carboxylic acids are more acidic than phenols. Explain.

Q. The amount of lactic acid,

H C_{3} H_{5} O_{3}

, produced in a sample of muscle tissue was analysed by reaction with hydroxide ion. Hydroxide ion was produced in the sample mixture by electrolysis. The cathode reaction was,

2 H_{2} O (l) + 2 e^{-} \to H_{2} (g) + 2 O H^{-} (a q .)

Hydroxide ion reacts with lactic acid as soon as it is produced. The end point of the reaction is detected with an acid-base indicator. It required

115

seconds for a current of

15.6 m A

to reach end point. How many grams of lactic acid (a monoprotic acid) were present in the sample?

Q. Explain briefly, with the help of a circuit diagram how an n-p-n transistor in C.E. configuration is used to study input and output characteristics.

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