Answer Posted / s dinesh

Optically active substances have an chiral c-atom. which means it has different molecule(gp of atoms) attached to it.When this light falls on bigger molecule (may be on left or right side) it will not allow it pass through it. In rotates its path like an optical substance.

why lactose has less charges when packed in steel containers when compared with packing of lactose in polyamide material?

2362

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2. Two grams of Benzoic acid are dissolved in 200 ml of water and extracted with 200 ml of diethyl ether. The distribution coefficient of benzoic acid is 100, and its dissociation constant is 6.5 10-5. Calculate the distribution ratio (D) of benzoic acid at pH 2, 5, and 6. 3. Calculate D at pH 2 to 10 (1 unit apart) in the above problem, and plot D versus pH.

2267

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Why are use silicon oil mr?

1261

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why xterra column require to use at higher ph?

971

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inhouse product is in capsule form in combination and RLD is in tablet form then can we proceed for multimedia CDP? in inhouse capsule product disso is paddle with sinker in release media is there then RLD product in tablet form then with same as paddle with sinker we can proceed n.a.?

774

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Why only 1.2 million lux hours require in photostability study?

1102

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is it necessary to do HPLC calibration at wavelength 315nm if we are doing analysis at this wavelangth

2218

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In the HPLC Calibration done wavelength accuracy done between 200nm-280nm .but not done remaining 300-400nm not done ?

976

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which situation gc hs and gc als require to use?

840

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Why perchloric acid used for potentiometric titration

2735

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what is mean by nitrosamine impurities?

1118

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What is dose dumping? why require to do?

1048

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Why six unit used for precision?

1409

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Why do we use KMnO4 in the test of control of obsorbance ? and why do we take specific quantity i.e 57-63mg?

2892

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how we can identify the impurity is coming below loq at transfering site?

935

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