Which identifies an oxidation-reduction reaction? a double replacement reaction a neutralization reaction a reaction in which ox
2 answers:
Answer: Option (c) is the correct answer.
Explanation:
In an oxidation reaction there is loss of electrons whereas in a reduction reaction there is gain of electrons.
So, overall there is exchange of electrons in an oxidation-reduction reaction.
For example, is an oxidation-reduction reaction.
As there is change in oxidation number of oxygen from 0 to -2 and change in oxidation number of carbon from -4 to +4.
Thus, we can conclude that a reaction in which oxidation numbers change identifies an oxidation-reduction reaction.
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Answer:
In an electrophilic aromatic substitution (Friedel Crafts alkylation) first in the monoalkylation of the 1,4-dimethoxybenzenethe the methoxy groups redirects the substitution for ortho-para positions with respect to the electrophile that is going to enter (alkyl group) this is due to the increase in electron density in that position, that is , to the inductive effect.
According to the second incoming alkyl group there would be 3 positions available, from which it will choose the meta position in relation to the second methoxy group, since the alkyl group is a weak activator of the ortho meta positions and coincides with the position to which it redirects the second methoxy group.
