Dear sir /meda,

i have a doubt on cannizaro reaction.The reaction begins with hydroxide attack on the carbonyl carbon followed by deprotonation to give a dianion. This unstable intermediate releases a hydride anion which attacks another molecule of aldehyde.

At dianion stage how Hydrate proton release as Hydride ananion. that hydrozen how to get the negitive charge ?

'x' gm of a compound A3B2C5 contains 'y' gm of A atoms

 

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how to represent the possible fischer projections for 2-bromohexane