why ??

koi karo plz

hint:
CH3 O- IS A STRONG BASE.
I THINK THIS HINT IS ENOUGH!!!!

in the second question the last part is benzene or cyclohexane

@ Arpan- I don't get anythink out of ur hint.
Explain a little more.

CH₃O^- being a strong base takes up the protons which forms an additional bond.
Woh cyclohexane nahi benzene hai..this is diazo coupling.