Sunday, August 19, 2018

organic chemistry - Why does benzaldehyde not respond to Fehling's test?



All aldehydes are supposed to respond to Fehling's test. So why doesn't benzaldehyde respond to it?


Does it have something to do with the fact that benzaldehyde is an aromatic compound? If so, then how?




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periodic trends - Comparing radii in lithium, beryllium, magnesium, aluminium and sodium ions

Apparently the of last four, $\ce{Mg^2+}$ is closest in radius to $\ce{Li+}$. Is this true, and if so, why would a whole larger shell ($\ce{...