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A monosaccharide A has a molecular weight of 150 Da. The two stereoisomers B and C that are both optically inactive form when A reacts with NaBH4.
Verify at all stereocenters in A up to C the absolute configuration according to the CIP (R/S) nomenclature.
what evidence is there that all cells have a common ancestor?
2p orbitals have : (1) n=1, l=2 (2) n=1, l=0 (3) n=2 l=1 (4)n=2, l=0 Ans: n=2 l=1
Nitrite rubbers (Gr-A or Buna-N or NBR): Nitrite rubber is prepared by the copolymerization of butadiene and acrylonitrile in emulsion systems. Properties: 1.
Organometallic compounds Organic compounds where a metal molecule is directly associated to carbon or organic compounds which consist of at least one carbon-metal bond are know
Q. Illustrate Chemical nomenclature? Ans. Chemical nomenclature is the system of names that chemists use to identify compounds precisely. The systematic method of naming c
Q.Waht are Standard Temperature and Pressure? Ans. The agreed set of conditions for comparison of gas volumes is called standard temperature and pressure (abbreviated
Gold has a molar mass of 197g/mol. How many atoms are in the sample?Please give me procedure also. Ans) molecular wieght of gold is 197 g 1mole/g of molecule is occupies t
I need to find the balanced formula for calcium hydroxide + potassium carbonatequestion..
Dyes Dye is a synthetic and natural colouring matter that is employed in solution to stain materials particularly fabrics. All the coloured substances are not dyes. A coloured
Describe the mechanism of ferromagnetism Ferromagnetism is the basic mechanism by which certain materials (like iron) form permanent magnets or/and exhibit strong interactions
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