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Properties of Nitrophenols:
O-Nitrophenol is a yellow in colour crystalline compound, whereas m- and p-isomers are colourless crystalline compounds.
Isomer ortho meta para
m.pt. (°C) 45 97 114
The lowest melting point of o-isomer is due to intra-molecular hydrogen bonding while meta and para isomers possess intermolecular hydrogen bonding and so, they comprise higher melting points.
They are stronger acids as compared to phenol. The order is:
p-isomer > o-isomer > m-isomer > phenol
while reduced, they form corresponding p-Nitrophenols and aminophenols. o- react along with bromine water to form 2, 4, 6-tribromophenol through transfer of nitro group.
Physical Properties - Alkenes (i) Alkenes are odourless and colourless. (ii) Alkenes are soluble in organic solvents and insoluble in water. (iii) Physical state of Alken
Preparation Of Raw Materials For Processing All the incoming raw materials, including packaging materials, should be evaluated and monitored to prevent potential contamination
density of gas is 2.86 ltr.the gas may be-
Rubber - polymer It is a polymer that is able of returning to its original size, shape or length later than being deformed or stretched. It a kind of elastomer. Rubber is of tw
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