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Classification based upon molecular forces:
Depending on the intermolecular forces, the polymers have been categorized into four types.
(a) Elastomers
(b) Fibres
(c) Thermoplastics
(d) Thermosetting polymers
Q. Extraction of f-block element ? As all the lanthanides occur together in nature, their extraction involves two main steps: (i) separation from one another and (ii) reducti
Discuss effect of impurity, temperature and alloying on the electricity conductivity of metal. For an ideal crystal with no impurities and imperfections mean free path at 0 K i
Q. Show the Halides of Aluminium? All the four trihalides of aluminium, i.e. AIF 3 , AICI 3 ,, AlBr 3 , and AlI 3 , are known. AIF 3 , is made by treating Al 2 0 3 with HF ga
how original solution is prepared in case of 1st group of basic radical
Coordination number and geometry Binary compounds are ones with two different elements present. 'Simple' crystal structures can be classed as ones in which each atom (or
Atomic absorption spectrophotometry: Atomic absorption spectrophotometry (AAS) concerns the absorption of radiation by the atomised analyte element in the ground state. The at
Explain The compound decarboxylates The compound decarboxylates; it is a disubstituted malonic acid in which the two a substituents are connected within a ring. The net effect
The number of orbitals present in the shell with n= 4 is: (1) 16 (2) 8 (3) 18 (4) 32 Ans: 16
Cavitation occurs when the pressure in localized regions reaches the vapor pressure. This can cause actually cause structural damage if vapor bubbles form and burst. Consider a sys
your HPLC system has efficiency 1500 theor. Plates, but baseline is very noisy. You have a choice either increase response time or decrease attenuation. what will you choose and wh
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