Corrections LMQs

Question 1

Similarities and differences of p and sigma

Answer 1

They both involve the overlap of orbitals, and both have an electrostatic attraction between a bonding pair of electrons and two nuclei

Sigma bond represents electron density between two carbon atoms

Pi bond electron bond above and below the carbon atom

Question 2

Conditions when naming

Answer 2

Number prefix should be as low as possible due to priority

Question 3

What conditions needed to be a tertiary brokolakane?

Answer 3

The carbon of the C-Br bond must be attached to 3 carbon atoms

Question 4

Why does the C-Cl bond have a lower rate of hydrolysis?

Answer 4

The C-Cl bond is shorter and therefore is stronger than the other bonds ( having a higher bond enthalpy ). This means it requires more energy to break, which is slower

Question 5

Which fragment has m/z 43, m/z 29 and m/z 15?

Answer 5

CH3CH2CH2

Ch3ch2

ch3