MCQ
Which among the following compounds does not show hydrogen bonding
- AChloroform
- BEthyl alcohol
- CAcetic acid
- ✓Ethyl ether
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$C{H_2} = CH - C \equiv C - C{H_2} - CN$
$(A)$ Total number of valence shell electrons at metal centre in $Fe ( CO )_5$ or $Ni ( CO )_4$ is $16$
$(B)$ These are predominantly low spin in nature
$(C)$ Metal-carbon bond strengthens when the oxidation state of the metal is lowered
$(D)$ The carbonyl $C - O$ bond weakens when the oxidation state of the metal is increased