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Incorrect statement about nucleophilic s...

Incorrect statement about nucleophilic substitution reaction is 

A

Reactivity of halides towards `SN^(1) ` mechanism is ` 3^(@) gt 2^(@) gt 1^(@) ` alkyl halides

B

Polar solvents favour `SN^(1) ` reactions

C

Reactivity of halides towards `SN^(2) ` mechanishm is `1^(@) gt 2^(@) gt 3^(@) ` alkyl halide

D

Low concentration of nucleophile favours `SN^(2) ` mechanism

Text Solution

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The correct Answer is:
D
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AAKASH SERIES-APPENDICES -REVISION EXERCISE -POLYMERS
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  2. Which of the following is an example of co-polymer ?

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  3. Which of the following statements about terylene are correct ? A) It...

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  4. Common monomer in melamine formaldehyde and Bakelite

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  5. Vinyl polymers are also known as A) Additional polymers B) Chain r...

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  6. Which one of the following polymer can be softened and hardened repeat...

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  7. IUPAC names of monomers in Nylon-6,6 are

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  8. Which of the following statements about condensation polymers are corr...

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  9. Chain initiation and chain propagation steps are involved in

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  10. Vinyl polymers are also known as A) Additional polymers B) Chain r...

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  11. Vinyl derivatives undergo which type of polymerization

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  12. Chloroprene is used in making

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  13. The monomers present in glyptal are

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  14. Natural rubber on ozonolysis gives

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  15. The formula for calculating Mn of a polymer is

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  16. During the vulcanization of rubber, sulphur cross linking occurs at ...

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  17. Which of the following is a biodegradable polymer

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  18. For natural polymers PDI is generally

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  19. Amide linkage is absent is

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  20. overset(-) (Mn) and overset(-)(Mw) of a synthetic polymer are relat...

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  21. Which of the following is currently used as a tyre cord

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