Home
Class 12
CHEMISTRY
These electron donating groups will be a...

These electron donating groups will be able to stabilize the chain carrying carbocation intermediate. Greater the stability of the carbocation intermediate, more facile is the cationic polymer
What is the following readily undergoes cataionic polymerization ?

A

`H_(2)SO_(4)`

B

HF

C

`BF_(3)`

D

All

Text Solution

Verified by Experts

The correct Answer is:
D
Acids are cationic polymerisation initiator (a) `H_(2)SO_(4)` (b) HF, (c) `BF_(3)`
Promotional Banner

Topper's Solved these Questions

  • POLYMERS

    AAKASH SERIES|Exercise Practice Sheet -5 (Match the following questions)|2 Videos

  • POLYMERS

    AAKASH SERIES|Exercise Practice Sheet -5 (Integer answer Types Questions)|6 Videos

  • POLYMERS

    AAKASH SERIES|Exercise Practice Sheet -5 (Single answer questions)|16 Videos

  • PERIODIC TABLE

    AAKASH SERIES|Exercise QUESTIONS FOR DESCRIPTIVE ANSWERS|37 Videos

  • PRACTICAL CHEMISTRY

    AAKASH SERIES|Exercise PRACTICE SHEET-5 (Integer answer Type questions)|6 Videos

Similar Questions

Explore conceptually related problems

These electron donating groups will be able to stabilize the chain carrying carbocation intermediate. Greater the stability of the carbocation intermediate, more facile is the cationic polymer Which of the following readily undergoes cataionic polymerization ?

These electron donating groups will be able to stabilize the chain carrying carbocation intermediate. Greater the stability of the carbocation intermediate, more facile is the cationic polymer In presence which group readily undergo vinylic cationic polymerization ?

An ion catalysed polymerization occurs in case of vinyl monomers with electron with drawing groups greater the stability of the carbane ion intermediate more facile is the an ionic polymerization Which of the following more reactive in an ionic polymerization ?

An ion catalysed polymerization occurs in case of vinyl monomers with electron with drawing groups greater the stability of the carbane ion intermediate more facile is the an ionic polymerization Which of the following vinyl substituted group more stabilizes the carbaneion ?

An ion catalysed polymerization occurs in case of vinyl monomers with electron with drawing groups greater the stability of the carbane ion intermediate more facile is the an ionic polymerization What is the an ionic initiator in the following ?

Polymerization involves various mechanisms depending upon the initiator. If initiator generates free radical, addition polymerization takes place through free radical mechanisms. If H^(+) is initiator and electron releasing group is present, cationic polymerization takes place. IF electron withdrawing group is present and KNH_(3) is initiator, anionic polymerization takes place. Which of the following will undergo cationic polymerization in presence of H^(+)

Polymerization involves various mechanisms depending upon the initiator. If initiator generates free radical, addition polymerization takes place through free radical mechanisms. If H^(+) is initiator and electron releasing group is present, cationic polymerization takes place. IF electron withdrawing group is present and KNH_(3) is initiator, anionic polymerization takes place. Which of the following will undergo anionic polymerization in presence of KNH_(2)

Alkenes undergo electrophilic addition with many reagents like HX, H_2O , HOCI etc. Except in the case of addition of X_2^(-) in other additions carbocation is formed as intermediate. The rate of such reactions depends on the stability of carbocation. Rearrangements and ring expansion are also common in such reactions. Propene on reaction with HI in presence of peroxide will give

Alkenes undergo electrophilic addition with many reagents like HX, H_2O , HOCI etc. Except in the case of addition of X_2^(-) in other additions carbocation is formed as intermediate. The rate of such reactions depends on the stability of carbocation. Rearrangements and ring expansion are also common in such reactions. The correct order of reactivity of the following towards electrophilic addition is P) Vinyl chloride Q) Pent-2-ene R) 3-methyl pent-2-ene S) 2,3-dimethyl but-2-ene

The products of bond breaking, shown below, are not stable, and cannot be isolated for prolonged study. Such species are referred to as reactive intermediate, and are belived to be transient intermediates in many reactions. The general structures and names of four such intermediates are, Charged Intermediates Uncharged Intermediates Carbocations (called carbonium ions in the older literature) are electrophiles and carbananions are nucleophiles. Carbenes have only a valence shell sextet of electrons and are therefore electron deficient. In this sense they are elecrophiles, but the non-bonding electron pair also gives carbenes nucleophilic character. As a rule, the electrophilic character dominates carbene reactivity. Carbon radicals have only seven valence electrons, and may be considered electron deficient, however, they do not in general bond to nucleophilic electron pair, so their chemistry exhibits differences from that of conventional electrophiles. Radical intermediates are often called free radicals. Intermediates are in general stabilised with conjugation, electron donating and electron with drawing groups. Which of the following carbo cations is more stable?