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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. Write phosphate conditioning method for water softening with suitable chemical reactions. How it is different from soda lime method. Ans. Phosphate condition
1. CH2=CH-CH3 inpresence of SO2Cl2 (UV light) product..?? 2. (CH3)3CH +Cl2 undergo photo halogenation product..?? 3. 1-propyne react with HCl product is? Solution) 1 SO2Cl2 resu
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The specific charge of proton is 9.6 X 10 6 CKG -1 then for an α-particle it will be : (1) 38.4X 10 7 Ckg -1 (2) 19.2x 10 7 Ckg -1 (3) 2.4 x 10
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it is impossibe to synthesise orgnic compounds in the lab since life force is essential for their formation -theory is known as
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Which electronic configuration for oxygen is correct according to Hund's rule of multiplicity: (1) 1s 2 , 2s 2 , 2p 2 x , 2p 1 y , 2p 1 z (2) 1s 2
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