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Organic Chemistry (342) - Inorganic Chemistry (123)
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When a glass rod is heated gradually and suddenly dipped in cold water, it cracks. What is the reason?? When a cool glass rod is suddenly heated, it cracks. Why?
990Why ph scale range is 14? Why it is not less or not greater than 14? Solution of hcl or hydrogen containing liquid has a ph. But if the solution is kmno4 here nothydrogen power does it ph?
1128
Arrange by acidic values : phenol, nitrotolouene and o-cresol?
What is meant by ph of a solution?
about method developement in hplc
In Dissolution Test why limit is define Q+5% what is the role of +5%.
Protactinium is part of the actinide series. Discuss the significance of this series and its implications for nuclear chemistry.
identification is for unknown? qualification for known? reporting for LOQ?
in DMF having extra impurities and in api COA also having extra imp than USP or BP product then how require to proceed?
what is mean by covalidation
Ph meter can show more than 14 ph reading? Why ph range in between 1 to 14 only?
Why ammonia is used as buffer solution in estimation of copper by EDTA method
Can we consider in purity angel
What is kentchin? Is it real?
What is dose dumping? why require to do?
How to do regeneration of Metacarb Pb plus column?
in which situation ion pair require to use?
