Answer:
The carbocation intermediate reacts with a nucleophile to form the addition product.
Explanation:
The reaction of benzene with an electrophile is an electrophillic substitution reaction. Here the electrophile replaces hydrogen. There is no formation of carbocation as intermediate in the reaction. Infact there is transition state where the electorphile attacks on benzene ring and at the same time the hydrogen gets removed from the benzene. So a transition carbocation is formed.
The general mechanism is shown in the figure.
i) Attack of the electrophile on the benzene (which is the nucleophile)
ii) The carbocation intermediate loses a proton from the carbon bonded to the electrophile.
iii) the carbocation formation is the rate determining step.
iv) There is no formation of addition product.
Thus the wrong statement is
The carbocation intermediate reacts with a nucleophile to form the addition product.
Answer:
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Answer:
D. 9.0x10²³ atoms
Explanation:
First we use <em>Avogadro's number</em> to <u>calculate how many molecules of Si₂H₆ are there in 0.75 mol</u>:
- 0.75 mol * 6.023x10²³ molecules/mol = 4.52x10²³ molecules
There are 2 Si atoms in one Si₂H₆ molecule, that means that in 4.52x10²³ Si₂H₆ molecules there will be:
- 2 * 4.52x10²³ = 9.03x10²³ Si atoms
Thus the answer is option D.
B. False
It was created in 1869
Stirring a solute into a solvent speeds up the rate of dissolving because it helps distribute the solute particles throughout the solvent. Hopefully this helps!