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Explain the un-ionized form of vanillin It is the un-ionized form of vanillin that has the typical odor. In NaOH solution, the phenol group ofvanillin ionizes to its conjugate
Why bromoethane are insoluble Because only two layers form, two of the three substances are mutually soluble. we know that water and bromoethane are insoluble-they form two lay
give the melting temperature values of group 2 elements
If the velocity of hydrogen molecule is 5x 10 4 cm sec -1 then its de-Broglie wavelength is: (1) 2 Å (2) 4 Å (3) 8 Å (4)100 Å Ans: 4 Å
conclusion of the topic?
Q. Illustrate Uses of f-block element? Lanthanides and many of their complexes have received wide industrial applications. For example, europium derivatives are used as phospho
Solubility - Physical charterstics of monocarboxylic acids The lower most members of the aliphatic carboxylic acid family (upto C 4 ) are extensively soluble in water.
define hardness and its types.
A Carnot heat engine gets heat at 800 K and rejects the waste heat to the environment at 300 K. The whole work output of the heat engine is used to drive a Carnot refrigerator that
Three-center bonding Example of where the 2c bonding picture is not present is in diborane B2H6. The terminal B-H bonds can be defined in simple 2c terms, but the number of
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