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C(2)H(2)underset(H(2)SO(4))overset(HgSO(...

`C_(2)H_(2)underset(H_(2)SO_(4))overset(HgSO_(4))toAoverset(O)toB` B is :

A

an acid

B

an aldehyde

C

acetone

D

ethanol.

Text Solution

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The correct Answer is:
A
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The product obtained from the following sequence of reactions is CH_(3)-C-=CHunderset(H_(2)SO_(4))overset(HgSO_(4))toAoverset(NaBH_(4))toB

C_(2)H_(2) underset(H_(2)SO_(4),H_(2)O)overset(Hg^(2+))rarr A overset([O])rarr B , The compound B is

In the reaction , HC-=CHunderset(H_(2)SO_(4))overset(HgSO_(4))toXoverset(LiAlH_(4))toYoverset(P//Br_(2))toZ Z is :

In the reaction , n- Hexanenitrile underset(H_(2)O)overset(H_(3)O^(+))toAoverset(NaOBr)toB , the product B is :

The end product of the reaction , CH_(3)underset(O)underset(||)(C)CH_(2)CH_(2)CH_(2)COOHunderset(H_(2)O,H^(+))overset(NaBH_(4))to is :

CH_(3)-C-=CHunderset("dil."H_(2)SO_(4))overset(HgSO_(4))to(A) CH_(3)-C-=CHunderset((2) H_(2)O_(2)//HO^(-))overset((1)BH_(3).THF)to(B) Product (A) and (B) is differentiated by :

Ph-overset(O)overset(||)(C)-OHoverset(SOCl_(2))to(A)underset(Pd-BaSO_(4))overset(H_(2))to(B) Product (B) is :

Identify product D in the following reaction sequence : CH_(3)-overset(CH_(3))overset(|)underset(CH_(3))underset(|)(C )-CH_(2)CH_(2)Ohoverset(K_(2)Cr_(7)O_(7),H_(2)SO_(4))underset(H_(2)O, "heat")(to)Aoverset(SOCl_(2))(to)Boverset((CH_(3))_2)NH)underset((2"mole"))(to)Coverset(1.LiAlH_(4))overset("diethyl ether")underset(2.H_(2)O)(to)D

Complete the following equations by writing the missing A, B, C, D etc. (i) CH-=Choverset("dil. "H_(2)SO_(4))underset(HgSO_(4))rarr Aoverset([O])rarr B overset(SoCl_(2))rarr C

H - C = C- H underset(H_2SO_4) overset(HgSO_4)to (A) underset((2) H_3O^(o+)) overset((1) NH_3 + HCN)to(B) , Product (B) of given reaction is :

MODERN PUBLICATION-ALDEHYDES , KETONES AND CARBOXYLIC ACIDS-Level -I (Multiple Choice Questions ) (Properties of Carboxylic Acids)
  1. Carboxylic acids are reduced by red P and HI to :

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  2. Formic acid and acetic acid may be distinguished by the reaction with ...

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  3. Formic acid reacts with conc . H(2)SO(4) to give :

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  4. The weakest acid among the following is :

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  5. Which of the following reagents does not give acid chloride on treatin...

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  6. In the reaction , CH(3)COOHoverset(Ca(OH)(2))toAoverset("Heat")toBover...

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  7. Which of the following groups will decrease the acidic strength of par...

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  8. Decarboxylation of monocarboxylic acids can be carried out by :

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  9. The main reason for the high acidic nature of carbocylic acids : R-...

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  10. In the reaction , the main product is :

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  11. Formic acid and acetic acid may be distin guished by the action with...

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  12. Which of the following is weakest acid ?

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  13. Which of the following is strong acid.

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  14. Strongest acid among the following is :

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  15. C(2)H(2)underset(H(2)SO(4))overset(HgSO(4))toAoverset(O)toB B is :

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  16. Propionic acid when treated with Br(2) in the presence of P in sunligh...

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  17. Benzoic acid reacts with LiAlH(4) to give

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  18. Vinegar is dilute aqueous solution of

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  19. Which of the following compounds does not have a carboxyl group ?

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  20. Acetic acid reacts with PCl(3) to give

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