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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:
Principal quantum number of an atom represents : (1) Size of the orbital (2) Spin angular momentum (3) Orbital angular momentum (4) Space orientation of the orbital
Q. What is Spontaneous processes? Ans. Spontaneous processes are events which occur without any assistance. When an object is held above the floor, it falls when released. Ic
Which one of the following is considered as the main postulate of Bohr's model of atom: (1) Protons are present in the nucleus (2) Electrons are revolving around the nucleu
A reaction is of first order in reactant A and of second order in reactant B. How is the rate of this reaction affected when (i) the concentration of B alone is increased t
Boiling point -physical characteristics of carbonyl compound The boiling points of aldehydes and ketones are high as compared to those of non polar compounds (hydrocarbons) or
Please explain the calculations involved in Kjeldahl''s method for estimating nitrogen
Q. Explain Ligand field theory? The bond approach, though not as perfect, is more useful. Here we do all the calculations based on crystal field theory. The differences between
i want know about the whole concept of werner complex.how it is and why we should know..everything
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what are the acid refractory and its application and examples?
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