Nucleophilic Addition at the Carbonyl
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Q.
Among the given compounds, the most susceptible to nucleophilic attack at the carbonyl group is
- MeCOCl
- MeCOOMe
- MeCHO
- MeCOOCOMe
Q.
In the nucleophilic addition of CN- to carbonyl carbon, the intermediate formed is
Planar
Tetrahedral
Cyclic
Pyramidal
Q.
Ethyl magnesium iodide reacts with which of the following compound to give 2 - methyl butan - 2 - ol after hydrolysis?
Formaldehyde
Acetaldehyde
Acetone
Either acetaldehyde or acetone
Q.
In the nucleophilic addition of CN-1 to carbonyl compound the intermediate formed is
Planar
Cyclic
Pyramidal
Tetrahedral
Q. The order of reactivity of phenyl magnesium bromide (PhMgBr) with the following compounds
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and I II III <!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--> AIPMT MAIN 2011
- II>I>III
- III>II>I
- I>III>II
- I>II>III
Q. One mole of an organic compound requires half mole of oxygen to give an acid. The compound may be
- Alcohol
- Ketone
- Ether
- Aldehyde
Q. Which of the following will not give haloform reaction?
- Acetone
- Pentan-2-one
- Pentan-3-one
- Butanone
Q. Acetadehyde reacts with thionyl chloride to give (the main product)
- CH3COCl
- CH3CH2COCl
- CH3CH2CHCl2
- CH3CHCl2
Q. Oxidation of a compound ‘X’ gives a product which reacts with phenyl hydrazine but does not give a sliver mirror test. The structure of ‘X’ is
- CH3CHO
- CH3CH2OH
- CH3CH2CH2OH
- (CH3)2CHOH
Q.
Any value of PH
PH = 1
PH = 4.5
PH = 12