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How do you explain in the absence of aldehyde group in the pentaacetate of D-glucose? Ans) when you react glucose with acetic anhydrate it forms pentaacetate with 5 OH grops it
The value of Planck's constant is 6.63x 10 -34 Js. The velocity of light is 3.0x 10 8 ms -1 . Which value is closest to the wavelength in nanometres of a quantum of light with
Tranquillizer or Hypnotics: The chemical substances employed for the treatment of stress, mild and harsh mental diseases are called tranquillizers. These are employed to relea
What is chemical formula for Borax? Ans) Chemical formulae of borax is (Na 2 ) B 4 (O 7 ) .10(H 2 ) O
#question:although CO is well known,why doesn''t SiO exist under normal conditions?
Which of the following is corrodes faster?Iron pole in sea water or iton pole on the beach? Ans) There are various ways of reducing and preventing this form of corrosion. One w
formula of lactic acid
How many spyro moleculesr are there Ans) n numbers
explain zone refining method of purification of silicon
,Potassium-42 is a radioisotope that nutritionists use to determine whether the body is effectively using potassium at the cellular level. The half-life of potassium-42 is 12.4 hou
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