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what is the cycle of caban dioxide and how it flow
what is the function of the charcoal in the purification of the 4-nitroanine 2.why is it not possible to obtain 2-and 4-nitroaniline by direct nitration of aniline (phenylamine)
The maximum number of electrons that can be accommodated in f sub shell is : (1) 2 (2) 8 (3) 32 (4) 14 Ans: 14
Properties of Catechol 1. Catechol is a colourless crystalline solid, its melting points is 105°C. 2. Catechol is soluble in water. 3. Catechol is exaggerated on exposure
How to know which compound is more stable if heat of formation values are given . Ans) Every compound tend to stay in lowest energy possible to be more stable, the less the energy
Both of the MOs have the nodes of the original 2p orbitals, which merge into a one node because the nodal plane is common to both orbitals. The antibonding MO has in addition a
a) During coagulation, the colloidal particles stay un-aggregated because: b) The aim during water softening is to precipitate calcium and magnesium as calcium carbonate and mag
Distinguish between van''t Hoff Method and Oswald Isolation Method. In each case give an expression for the rate of reaction.
In an element going away from nucleus, the energy of particle : (1) Decreases (2) Not changing (3) Increases (4) None of these Ans: Increases
Q. How can we obtain Boron? Boron is- obtained by the red-action of B 2 O 3 with magnesium or sodium B 2 0 3 is first prepared by strongly katingH 3 B0 3 which is obtained b
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