Recent questions in Chemistry

With the increase in Atomic number in a period

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Kodel polymer is prepared by following reaction

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1 ev of energy is equivalent to

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Which of the following alkenes possess highest reactivity in cationic polymerisation?

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Which of the following elements has zero electron affinity ?

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Ratio of monomers isobutylene & isoprene used to produce Butyl Rubber

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Which of the following never has an oxidation state +1?

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Which of the following is a copolymer of glycine?

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Which of the following elements is a metalloid:

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The monomer for PGA is

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Which of the following elements has the highest value of electron affinity.

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Which of the following elements has the basic oxide?

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This polymer is used for making cups and plates which are quite hard and durable:-

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Which of the following elements is expected to have max electro negative?

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Electronegativity of flurine is

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Acronitrile prefers to polymerise under

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The correct order of ionization energy is :

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Butyl rubber has the monomer units

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Which of the following statements is correct regarding free radical polymerisation?

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The correct order of ionization energy is

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The correct order of electro negativity is

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The correct order of electron affinity is :

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Which of the following fibres are made of polyamides?

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The statement that are true for the long form of periodic table are :(i) It reflects the sequence of filling the electrons in the order of sub energy levels s,p,d and f (ii)It helps predict the stable valency states of the elements

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Which of the following are non-biodegradable polymers?

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PHBV stands for

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The 1st ionization potential Na,Mg,Al and Si are :

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The electro negativity of the following elements increase in the order :

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Cellulose diacetate polymer is

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The polymer which is used for making non-stick utensils is

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The incorrect name for polymethyl methacrylate (PMMA) is

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Atomic radii of fluorine and neon in Angstrom units are respectively

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The first ionization potentials in electrons volts of nitrogen and oxygen atoms are respectively given by

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Which of the following term means pain killing?

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Which of the following is a chain-growth polymer?

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What is the name of the chemical structure shown below:

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What does this ratio indicate :-$\bar{M_w}/ \bar{M_n}$

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Which of the following drug acts as an antipyretic as well analgesic?

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Which of the following is not a synthetic rubber?

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Which of the following is one of the monomer of Buna-s?

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Match the correct drings to the group they belong to :-

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Which of the following is the monomer of nylon-6?

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Out of the addition polymers stated below,which of the following is used for making blankets,sweaters and synthetic carpets?

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Which of the following antibiotic is used against tuberculosis?

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Which of the following is used for insulation of electricity carrying wires and cables?

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Which of the following drug can only kill micro organism ?

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State the temperature and pressure in the following reaction:$nCH_2=CH_2(Ethylene)\rightarrow -(CH_2-CH_2-)_n(polyethylene)$

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Which of the following is an opium derivative narcotic ?

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Which of the following process organic peroxides undergo in free radical addition polymerisation?

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Which type of dye is used for polyseterrs, nylons and poly carylonitrile ?

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