4) 1 chiral carbon, leading to two optical isomers.
6) None, it leads to benzaldehyde. This is Rosenmund Reduction.
7) Methanol is strongest acid, it is an exception. CH3O- anion is somewhat stable due to accommodation of negative charge over surface area of CH3. Hence its conjugate acid is stronger than the rest of the alcohols given.
5) Tert-butyl alcohol undergoes dehydration readily as tertiary carbocation is most stable carbocation.
3) The balanced electrode reaction for this is -:
Al3+ + 3- -----> Al
The number of electrons involved in this reduction gives the number of Faradays of electricity. Here for one mole of Al to be deposited, 3 Faradays of electricity are required. Hence (C).
1) Cell constant G" = l/A = 1.5/0.75 = 2 cm-1