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Preservatives:
The preservatives avoid spoilage of food because of microbial expansion. The most common preservative employed is sodium benzoate; C6H5COONa It is metabolized through conversion to hippuric acid, C6H5CONH CH2COOH that finally is excreted in the urine. Salts of sorbic acid & propionic acid are as well employed as preservatives.
what is nobel gasses
Why do the hydrides of O and F in group 16 and 17 respectively show abnormally high melting points and boiling points as compared to other hydrides in their respective groups? Expl
explain main reason for boiler corrosion ?
Osmotic pressure: Osmosis process is the movement of a solvent from a solution of lower solute concentration (higher solvent concentration) to one of the higher solute concentr
conformity test of basic radicles in salt analysis
Q. Explain Le Chtelier's Principle Ans. Consider the equilibrium reaction of: A + B -> C + D The forward reaction occurs when A and B combine to form C and D: A +
give instrumentation of electrogravimetry
Describe the following giving suitable examples: i. Cannizzaro reaction ii. Aldol condensation b. Give a chemical test to distinguish among ethanal and propanal.
The nucleus of the element 21 E 45 contains: (1) 45 protons and 21 neutrons (2) 21 protons and 24 neutrons (3) 21 protons and 45 neutrons (4) 24 protons and 21 n
Bond formed in crystal by anion and cation is: (1) Ionic (2) Metallic (3) Covalent (4) Dipole Ans: Ionic
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