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the dug known as LSD has the formula C20H25N3O.one suspected sample contained 74.7%C,7.95%H,9.99%N.calculate the theoretical percentages to four significant figures
Reichert-Meissl value or R/M value - Analysis of oils and fats It points out the amount of steam volatile fatty acids exist in the oil or fat. It is illustarted as the number o
The boron trihalides are highly volatile; BF 3 (b. p., 173 K) and BCI 3 , (b. p., 260.5 K are gases, BBr 3 a volatile liquid (b. p., 319 K) and Bl 3 a low melting solid (m. p.,
Iso-electronic species is: (1) F - ,O -2 (2) F - , O (3) F - , O + (4) F - , O +2 Ans: F - ,O- 2
Beckmann rearrangement Ketoxime while treated with acid at 0° C it goes through rearrangement termed as Beckmann rearrangement. So, acid catalysed conversion of ketoximes t
The number of electrons in the valence shell of calcium is: (1) 6 (2) 8 (3) 2 (4)4 Ans: 2
WRITE AN ASSIGNMENT FOR APPLICATION OF COLLOIDS
A completely filled d -orbital ( d 10 ): (1) Spherically symmetrical (2) Has octahedral symmetry (3) Has tetrahedral symmetry (4) Depends on the atom Ans: Spherical
Which sample is better to use, bigger sample or smaller sample?
Hydrolysis of an ester into acid and alcohol can be done by acid or alkali. which is the best method and why?
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