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what is allotropy
Q. Show the properties of Tetrahydrido borate? Tetrahydrido borate anion BH - 4 has a tetrahedral structure which can be explained on the basis of sp 3 hybridisation of boron
This of the following is an electrovalent linkage: (1) CH 4 (2) MgCl 2 (3) SiCl 4 (4) BF 3 Ans: MgCl
Write the structures of monomers used in the preparation of: a. Teflon b. PMMA
define metalloid
Q. Explain Emulsion stability? The stability of an emulsion is determined by the viscosity of the continuous phase, presence of an emulsifier, the concentration of the emulsifi
Classification of proteins - Fibrous proteins These are composed of polypeptide chains which run parallel to the axis and are held together by a strong hydrogen and disulphide
20ml of water sample requires 15ml of 0.1mg/l sodium carbonate using phenolphthalein indicator. state the type of acidity and calculate the acidity
Advantages of radiometric titration
Chemical reactivity of alkynes - Hydrocarbon C Ξ C is less reactive as compared to the carbon-carbon double bond in the direction of electrophilic addition reaction. This is re
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