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Which of the following is/are correct regarding the given reaction?

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Important Questions on Organic Chemistry- Some Basic Principles and Techniques

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Alpha Question Bank for Engineering: Chemistry>Chapter 23 - Organic Chemistry- Some Basic Principles and Techniques>Exercise-4>Q 273

In the given reaction, the percentage of (-) enantiomer formed is:

CH3-CHI-CH2-CH3⟶I-CH3-CHI-CH2CH3αobs=-15.90°                   αobs=-15.26°

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Alpha Question Bank for Engineering: Chemistry>Chapter 23 - Organic Chemistry- Some Basic Principles and Techniques>Exercise-4>Q 274
For the reaction: R-X+OH-⟶R-OH+X-, the rate expression is given as rate =6.0×10-5[R-X][OH-]+2×10-7[R-X]. What percentage of R-X react by the SN2 mechanism when [OH-]=0.01 molar.
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Alpha Question Bank for Engineering: Chemistry>Chapter 23 - Organic Chemistry- Some Basic Principles and Techniques>Exercise-4>Q 275
In the presence of an anthraquinone derivative as a catalyst, the aqueous solution of sodium dithionite Na2S2O4 (Fieser's solution) effectively removes oxygen and forms
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Alpha Question Bank for Engineering: Chemistry>Chapter 23 - Organic Chemistry- Some Basic Principles and Techniques>Exercise-4>Q 276
Organic compounds sometimes adjust their electronic as well as steric structures to attain stability. Among the following, the compound having the highest dipole moment is :
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Alpha Question Bank for Engineering: Chemistry>Chapter 23 - Organic Chemistry- Some Basic Principles and Techniques>Exercise-4>Q 277
Which of the following reaction mechanism does not involve carbocation as an intermediate?
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Alpha Question Bank for Engineering: Chemistry>Chapter 23 - Organic Chemistry- Some Basic Principles and Techniques>Exercise-4>Q 278
Compound P on treatment with CH2N2 (diazomethane) produces compound Q. Compound Q on reaction with HI produces two alkyl iodides R and S. Alkyl iodide S with higher number of carbon atoms on reaction with KCN followed by hydrolysis gives 3-methylbutanoic acid. The compound P is:
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Alpha Question Bank for Engineering: Chemistry>Chapter 23 - Organic Chemistry- Some Basic Principles and Techniques>Exercise-4>Q 279
How many optically active molecules are possible with structural formula CH2OHCHOHCHOHCHOHCHOHCHO?
 
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Alpha Question Bank for Engineering: Chemistry>Chapter 23 - Organic Chemistry- Some Basic Principles and Techniques>Exercise-4>Q 280
Glucose and fructose are: