Which of the following compounds is least soluble in water A) acetone B) propana

Question

Which of the following compounds is least soluble in water A) acetone B) propanal C) ethanol D) heptanal E) formaldehyde (CH2O) Which reagent is the best choice for the synthesis of hexanal from 1-hexanol? A) PCC B) Chromic acid C) LAH D) Fuming sulfuric acid E) Eye of newt Which of the following is a property associated with amine salts? A) explosive B) Reacts with strong acid C) Volatile liquid D) Smells like rotten eggs E) Soluble in water Considering the following molecule, which statement correctly describes its stereochemical situation? A) The molecule is chiral because the N has 4 different groups including its lone pair of electrons B) The molecule is chiral because it has a chiral carbon C) The molecule is achiral because it is a meso compound D) The molecule is achiral because the N is permanently sp2 hybridized E) The molecule is achiral because is readily switches between enantiomeric forms. The mechanism of imine formation does not involve which of the following transformations? A) Protonation of the carbonyl oxygen B) Reduction of the carbonyl carbon C) Nucleophilic addition of amine D) Loss of water E) Formation of CN double bond

Explanation / Answer

1) d) heptanal

because of its long hydrophobic chain.

2) a) PCC is best for oxidation of alcohol to aldehyde.

3)b) reacts with strong acid.

4)a) molecule is chiral because it has four difderent sunstituents including lone pair.

5) b) reduction of carbonyl carbon does not take placr

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