Chemistry, 15.07.2019 20:30 61497

Draw the structures of the major and minor organic products formed when hbr reacts with 2,4,4-trimethyl-2-pentene in the presence of peroxides. when drawing hydrogen atoms on a carbon atom, either include all hydrogen atoms or none on that carbon atom, or your structure may be marked incorrect.

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Answer : The major and minor products of 2,4,4-trimethy-2-pentene will be a tertiary radical of Br which will be in major quantity whereas secondary radical of Br will be in minor quantity.

As the reaction follows anti-markonikov's rule the radical formed in tertiary state will be more stable and the secondary state will be much unstable as compared to tertiary state.

Note - The structures are arranged in the attachment
Draw the structures of the major and minor organic products formed when hbr reacts with 2,4,4-trimet

Draw the structures of the major and minor organic products formed when hbr reacts with 2,4,4-trimet

Answer from: Quest

assuming that your periodic table has eighteen columns, you should highlight the four elements in the third column from the left of the table.

explanation

neutral atoms of elements after calcium contain d electrons. the energy of d orbitals of a particular main shell lies between the energy of the s and p orbitals of the next main shell. for example, electrons in the $3d$ have energy higher than those in the $4 s$ orbital while lower than those of the $4 p$ orbital.

by the aufbau principle, electrons fill orbitals one at a time, starting from those of the lowest energy. the $4s$ orbital is therefore filled right after $3p$ orbitals and before $3 d$ orbitals.

potassium has electron configuration $[\text{ar}] 4 s^{1}$ and calcium $[\text{ar}] 4 s^{2}$ . the s orbital of a main shell holds a maximum of two electrons. the next element would thus have the electron configuration $[\text{ar}] 4 s^{2} \; 3d^{1}$ and satisfy the requirements.

a neutral atom of the element contains three electrons on top of the most recent noble gas element. it should thus be placed in the third column of the periodic table. both scandium and yttrium would satisfy the conditions. an aufbau diagram indicates that the 4f orbital is filled before the 5d. however, it appears that exceptions exists for both lanthanum and actinium. neutral atoms of the two d-block elements also demonstrate the $ns^{2} \; (n-1) p^{1}$ and should be highlighted as well.

Answer from: Quest

hey there!

mass = 6.75 g

volume = 9 cm³

therefore:

d = mass / volume

d = 6.75 / 9

d = 0.7 g/cm³

answer b

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Draw the structures of the major and minor organic products formed when hbr reacts with 2,4,4-trimet...