Home
About Us
Contact Us
Bookmark
Saved Bookmarks
Current Affairs
General Knowledge
Chemical Engineering
UPSEE
BSNL
ISRO
BITSAT
Amazon
ORACLE
Verbal Ability
→
General Awareness
→
IIT JEE in General Awareness
→
Which poison the catalyst (Pd) at aldehyde stage i...
1.
Which poison the catalyst (Pd) at aldehyde stage in the reduction of acyl halideA. PCCB. `BaSO_(4)`C. `SnCl_(2)`D. `CuSO_(4)`
Answer» Correct Answer - B
Show Answer
Discussion
No Comment Found
Post Comment
Related InterviewSolutions
Assertion: The acetate ion is resonance stablized Reason : Acetate ion is more basic than the methoxide ion.A. If Both assertion and reason are true reason is the correct explation of the assertion.B. If Both assertion and reason are true but reason is not the correct explation of the assertion.C. If assertion is true but reason is false.D. If assertion is false but reason is true.
Statement-1: When PhCHO is made to react in `D_(2)O`, deuterium in incorporated in product in Cannizzaro reaction. and Statement-2: In cannizzaro reaction transfer of hydride takes place from one molecule to other.A. Statement-1 is True, Statement-2 is true, statement-2 is a correct explanation for statement-2B. Statement -1 is true, Statement-2 is true, statement-2 is not a correct explanation for statement-2C. Statement-1 is true, statement -2 is FalseD. Statement-1 is False, Statement-2 is true
Which of the following compound does not undergo Cannizzaro reaction ?A. EthanolB. MethanalC. BenzaldehydeD. 2,2,4,4- tetra methyl 3- pentanone
Which of the following does not react with phenyl hydrazine ?A. EthanolB. EthanalC. AcetoneD. 2- pentanone
Ester on hydrolysis with dil HCl gives :(a) RCOOH + ROH (b) RCOR + ROH (c) ROH + ROH (d) RCOR + RCOOH
The best reagent to convert pent-3-en-2-ol into pent-3-en-2-one isA. Acidic `KMnO_(4)`B. Alkaline `K_(2) Cr_(2) O_(7)`C. Chromic anhydride in glacial acetic acidD. Pyridinium chlorochromate
Which is the best reagent for the following transformation? `CH_(3)-C-=C-CH_(2)-overset(O)overset(|)(C)-Cl to CH_(3) -C-=C-CH_(2)-overset(O)overset(||)(C)-H`A. `Li[{CH_(3)}_(3)AIH]//78^(@)C`B. `Pd//BaSO_(4)//H_(2)`C. `LiAIH_(4) then CrO_(3)-H_(2) SO_(4)`D. `NaBH_(4) then CrO_(3)-H_(2) SO_(4)`
`CH=CHunderset(H_(2)SO_(4))overset(HgSO_(4))rarrAunderset(H_(2)O)overset(CH_(3)MgBr)rarrBoverset(P//Br_(2))rarrC.` Here C is `:`A. `CH_(3)CH(Br)CH_(3)`B. `CH_(3)-CH_(2)-CH_(2)-Br`C. `CH_(2)=CH-Br`D. `Br-CH=CH-CH_(3)`
Isopropyl alcohol on oxidation formsA. acetoneB. etherC. acetaldehydeD. ester
Propanone can be prepared from ethyne byA. passing a mixture of ethyne and steam over a catalyst, magnesium at `420^(@)C`B. passing a mixture of ethyne and ethanol over a catalyst zinc chromiteC. boiling ethyne with water and `H_(2)SO_(4)`D. treating ethyne with lodine and NaOH.
Reply to Comment
×
Name
*
Email
*
Comment
*
Submit Reply
Your experience on this site will be improved by allowing cookies. Read
Cookie Policy
Reject
Allow cookies