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The correct order of reactivity of Ph Mg...

The correct order of reactivity of Ph Mg Br with
`underset((I))(Ph-underset(C)overset(O)overset(||)(C)-Ph)" " underset((II))(CH_(3)-overset(O)overset(||)(C)-H)" " underset((III))(CH_(3)-overset(O)overset(||)(C)-CH_(3))` is

A

`(I) gt (II) gt (III)`

B

`(III) gt (II) gt (I)`

C

`(II) gt (III) gt (I)`

D

`(I) gt (III) gt (II)`

Text Solution

Verified by Experts

The correct Answer is:
C
Reaction of `PhMgBr` with carbonyl compoundis an example of nucleophilie addition oncarbon-deficiency of carbonyl carbon and less steric hindrence on carbonyl carbon.
The acetaldehyde I is the most reactiove `C_(6) H_(3) COC_(6) H_(5)` least
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The IUPAC name of CH_(3)-overset(OH)overset(|)underset(H)underset(|)(C)-CH_(2)-overset(O)overset(||)(C)-CH_(3) is:

Arrange the following in order of their reactivity toward decarboxylation reaction :- underset(I)(CH-=C overset(O)overset(||)C-OH) " "underset(II)(CH_(2)=CH-overset(O)overset(|)C-OH)" " underset(III)(CH_(3)-CH_(2)-overset(O)overset(||)C-OH) " " underset(IV)(CH_(3)-overset(CH_(3))overset(|)CH-overset(O)overset(||)C-OH)

The correct order of reactivity of PhMgBr with Ph - overset(O)overset(||)(C ) - Ph, " " CH_(3) - overset(O)overset(||)(C ) - H, " " CH_(3) - overset(O)overset(||)(C ) - CH_(3) " (I) ""(II) ""(III) "

Mark out the correct order of dipole moment for the following compounds : H-underset("I")overset(O)overset(||)C-H" " H_(3)C-underset("II")overset(O)overset(||)C-H" "H_(3)C-underset("III")overset(O)overset(||)C-CH_(3)

The IUPAC name of compound CH_(3)-overset(O)overset(||)(C)-underset(CH_(3))underset(|)(CH)-underset(CHO)underset(|)(CH)-overset(CH_(3))overset(|)(CH)-CH_(3) is:

A2Z-ALDEHYDES, KETONES AND CARBOXYLIC ACID-Section D - Chapter End Test
  1. The correct order of reactivity of Ph Mg Br with underset((I))(Ph-un...

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  2. Aldehydes with alpha-H atom do not undergo disproportionation because:

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  3. Which of the following tests would help in the distinction of HCOOH an...

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  4. In Cannizzaro reaction, which of the following is a better hydride don...

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  5. Mark the correct order of increasing reactivity.

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  6. Compound (A) given below can undergo Cannizzaro reaction itself and cr...

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  7. CH3 CH=CHCHO is oxidised to CH3 CH=CHCOOH using :

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  8. Clemmensen's reduction will convert cyclohexanone into:

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  9. What of the following is expected to be most highly ionised in water ?

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  10. Ethylidene chloride is hydrolysed with aqueous NaOH. The product forme...

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  11. The vapours of ethyl alcohol are passed over red hot copper at 573 K t...

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  12. (CH(3))(2) CHOH overset ("Mild") underset ("oxidation"[0]) to (X) over...

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  13. The chemical reaction of acetaldehyde and ammonia results in:

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  14. When diethyl cadmium [(C(2)H(5))(2)Cd] is treated with acetyl chloride...

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  15. The product formed by the reaction of acetaldehyde with excess of etha...

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  16. Which of the following will not be formed when calcium formate is dist...

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  17. In order to prepare acetone from acetyl chloride in one step, which of...

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  18. Which of the following reagents can help in separating a mixture of ac...

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  19. The reagents used to convert

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  20. Which of the following is the stronger acid?

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  21. Of the following which compound is an acetal ?

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