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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
information of boron element
lanthanide elements names
The magnetic quantum number of valence electron of sodium (Na) is: (1) 3 (2) 2 (3) 1 (4) 0 Ans: 0
Number of unpaired electrons in inert gas is: (1) Zero (2) 8 (3) 4 (4) 18 Ans: Zero
discuss the principle of zeolite process with chemical equation
Be 2+ is isoelectronic with: (1) Mg 2+ (2) Na + (3) Li + (4) H + Ans: Li +
what the uses of NH4Cl,NH4OH and HCL,H2S in qualitative analysis?
#questiolaw of chemical combinationn..
a student prepared a solution of sodium carbonate by 2.111g of the solid to a 250.0ml volumentric flask and adding H2O to the mark.Some of this solution was transferred to a burett
Physical chareterstics of carbonyl compounds Physical state: a. Methanal is a pungent smell gas. b. Ethanal is a volatile liquid and boiling points 294 K. c. Other ald
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