Recent questions in Chemistry

Which of the following is the formula of number average molecular mass $\bar{M_N}$?

asked Mar 12, 2014 by sreemathi.v

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Addition polymerisation is otherwise called

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$4FeCl_3+3K_4Fe(CN)_6 \longrightarrow (x)+12KCl$ the x formed :

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Which of the following represents neoprene polymer?

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The formulae of Blue vitriol is

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Which of the following condition is for polydisperse polymers?

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The monomer of polystyrene is

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Which one of the following is the formula of weight average molecular mass$(\bar{M_w})$:-

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Hydrolysis products of $ln C_2$ what is y.

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Hydrolysis products of $lnC_2$ what is x.

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Buna-S and Buna-N has one monomer in common:

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Which of the following statements is not correct

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In Bakelite the rings are joined to each other through

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Among the following polymers the intermolecular forces are weaker in

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Structure of some common polymers are given which of the following is not correctly matched?

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Which of the following is a heterocyclic triamine with formaldehyde?

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The spin only magnetic moment of $Cr^{x+}$ is $4.9\;BM$ . Find $x$

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What is the product formed in the below polymerisation?

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Which of the following is the monomers of terylene?

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Which of the following compounds are formed by step-growth polymerisation?

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Which one of the following shows the polyacrylonitrile polymer?

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State the monomer & polymer involved in the polymerisation process? $nF_2C=CF_2\quad\underrightarrow{\text{Heat}}\quad -(F_2C-CF_2-)_n$

asked Mar 12, 2014 by sreemathi.v

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Which of the following is used as a catalyst in the preparation of high density polythene(HDP)?

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Which of the following is not a chain growth polymerisation process?

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How is PVC made soft?

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Which compound makes natural rubber more elastic and non-sticky?

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Which one of the following is used in making explosives?

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Which of the following are not biopolymers?

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The element ununoctium belongs to

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The correct order of first ionization potential is :

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The arrangements of the following polymers in increasing order of their intermolecular forces is

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The formation of $O^{2-}(g)$ starting from $O(g)$ is endothermic by $603\;kjmol^{-1}$ .If electron affinity of O is$ -141\;kjmol^{-1}$, the second electron affinity of oxygen would be :

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Which one of the following is the incorrect usage of PVC?

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The Electronic configuration of group 15 is

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The electron configuration of Actinides are gives as

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The formula of poly (E-caprolactone) is

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Which one of the following is the structural formula of polyglycolic acid(PGA)?

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Monomers of glyptal are

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Buna-N is a copolymer of

asked Mar 11, 2014 by thanvigandhi_1

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The condensation polymer among the following is

asked Mar 11, 2014 by thanvigandhi_1

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Given the polymers arrange them in the decreasing order of their inter molecular forces: A=Nylon 6,6 B = Buna-S and C=Polythene.

asked Mar 11, 2014 by thanvigandhi_1

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Which one of the following statements is not true?

asked Mar 11, 2014 by thanvigandhi_1

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Co-polymers can be obtained by

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The monomer which has the least bility tto underho cationic polymerisatiomn is

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In Group 13 the first member is

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F ion has smaller size than F atom

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Which of the following configuration is expected to have max different in second and third ionization energy :

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In the periodic table the metallic character of elements:

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In the periodic table Electronegativity of elements :

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Poly (butylene terephthalate)is a plastic material used in automaitve ignition system and has the structure

asked Mar 11, 2014 by thanvigandhi_1

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