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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:
Q. Determine the taste threshold for different sensations? • perceive the individual differences existing for taste stimulation, and • identify your own threshold and iden
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Describe the following giving suitable examples: i. Cannizzaro reaction ii. Aldol condensation b. Give a chemical test to distinguish among ethanal and propanal.
When an electron jumps from L to K shell: (1) Energy is absorbed (2) Energy is released (3) Energy is sometimes absorbed and sometimes released (4) Energy is nei
Introduction Methods of characterization aim to calculate the products of a reaction. The level of detail expected depends on the circumstances, and calculates the range of met
define alkanes and explain classification of alkanes.
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explain types of ir spectrometer
Give chemical reaction in support of each of the following statements: (i) The +1 oxidation state gets stabilised progressively from Ga to TI in Group (ii) All the bonds PCl5
Although CO is well known, SiO does not exist under ordinary conditions. Why is that?
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