Answer:
Nitrobenzene < Bromobenzene < Benzene < Phenol
Explanation:
Aromatic compounds undergo electrophilic aromatic substitution reaction in the presence of relevant electrophiles. Certain substituents tend to increase or decrease the tendency of an aromatic compound towards electrophilic aromatic substitution reaction.
Substituents that increase the electron density around the ring such as in phenol tends to make the ring more reactive towards electrophilic substitution. Halogens such as bromine has a -I inductive effect as well as a +M mesomeric effect.
However the -I(electron withdrawing effect) of the halogens supersedes the +M electron donation due to mesomeric effect.
Putting all these together, the order of increasing reactivity of the compounds towards electrophilic aromatic substitution is;
Nitrobenzene < Bromobenzene < Benzene < Phenol
Explanation:
Incomplete Parameters provided. The density of This solution is need to solve this question.
steps to take
Find the Mass of Na2CO3 added
Mass=Mole x Molar mass
=0.05x106
=5.3g.
Find the mass of Water added
Knowing that density of Water is 1g/ml
1g/ml x 1000ml/1L x 0.4L
= 400g of Water
Total Mass = 400 + 5.3 = 405.3g
Recall
Density=Mass/Volume
Volume = Mass/density
The density of the solution isnt given
Get that
Input it into the expression above
and get the volume of solution
Molarity = Moles of solute /Volume of solution in L
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The answer is A. I know because I know.