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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. Determine the Number of neutrons? Isotopes of an element can as well be specified by writing the mass number of the isotope following a hyphen after the name of the element.
general principal for extraction of metals
Q. What is softening of water? Describe deionization method of water softening with diagram. Ans. Softening of water: The process of removing the hardness causing salts from
industrial application of cyanohydrin.?
What are the compounds having at least single chiral centre (asymmetric carbon atom)? Draw their structural formulae (line-bond structures) with all chiral centres marked by an ast
what are causes of chemical bonding?
(i) Assign appropriate reason for each of observations: (a) Anhydrous ALCI is used as a catalyst. (b) Phosphinic acid behaves as a monoprotic acid. (c) SF6 is not easily h
State 2nd law of thermodynamics in many forms as possible and show that they are identical in figures?
What is the maximum number of electrons which can be accommodated in an atom in which the highest principal quantum number value is 4: (1) 10 (2) 18 (3) 32
Draw the line-bond structure of the nucleotide 2'-deoxyadenosine 5'-monophosphate (damp, disodium salt) and of the bases cytosine, guanine, and thymine. Indicate the correct hy
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