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Q. Show the properties of Tetrahydrido borate?
Tetrahydrido borate anion BH-4 has a tetrahedral structure which can be explained on the basis of sp3hybridisation of boron. You have already studied that NaBH4 is an important reagent for the preparation of B2H6. Solubility and stability of NaBH4 in alcoholic and aqueous solutions make it a useful reagent in the reduction of Aldehydes and ketones to primary and secondary alcohols respectively. Other functional groups such as > C = C< - COOH and -NO2 are not attacked normally:
Metals: Iron : 1. Most automobiles, machine tools, building parts, the hulls of large ships, and machine parts are made out of iron. (Iron metal is strong but is quite
Mesh size of silica gel for prep tlc
Trans -Isomer of a substance is more stable than Cis-Isomer.
formation of energy bonds in solids are in accordance to? give reasons .
The charge on the atom containing 17 protons, 18 neutrons and 18 electrons is: (1) +1 (2) -2 (3) -1 (4)Zero Ans: -1
WHY WE CALCULATE GERM OIL ACIDITY OF WHEAT FLOUR?
Reaction of conjugate addition This reaction is a "conjugate addition" of cyanide ion on a cyclopropane. Notice that reaction at the least branched carbon of the cyclopropane
Q. Quality of edible oils - fats? Various parameters are used for the assessment of the quality of fats and oils. Some of the important ones include determination of moisture c
Why magnesium does not impart any colour to Bunsen flame while calcium does
EXPLAIN ALLOTROPHY?
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