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Reduction of Alkyne:
Alkynes add on hydrogen in existence of appropriate catalysts like finely divided Ni, Pd.
Determine if the triple bond is not found at the end of the carbon chain of the molecule, the alkene made may be cis and trans depending upon the choice of reducing agents.
With Na/NH3 or LI / NH3 in (liquid ammonia) trans alkene is approximately an exclusive product whereas catalytic reduction at alkyne affords mainly cis alkenes.
Acidic Nature of Phenol - Hydrocarbon The acidic nature of phenol is observed in the following: (1) Phenol changes blue litmus to red. (2) Highly electropositive metals r
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240 g of water at 20 degree C are mixed with a sample of iron at 500 degree C. The final temperature of the system is 42 degree C. Find the mass of the iron sample
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The specific charge of proton is 9.6 X 10 6 CKG -1 then for an α-particle it will be : (1) 38.4X 10 7 Ckg -1 (2) 19.2x 10 7 Ckg -1 (3) 2.4 x 10
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Describe Hall Effect? Briefly discuss physical origin and uses of Hall Effect? Ans: If a conducting bar is placed in a magnetic field B ⊥ to its axis and if a current flow
After making an ester by heating a carboxylic acid with alcohol in the presence of concentrated sulfuric acid, water is added to the mixture and the ester seperates out as oily lay
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