For the following reaction scheme, percentage yields are given along the arrow:



x g and y g are mass of R and U, respectively.

(Use : Molar mass (in g mol^$$-$$1) of H, C and O as 1, 12 and 16, respectively)

The value of x is ________.

For the following reaction scheme, percentage yields are given along the arrow:


xg and yg are mass of R and U, respectively.

(Use : Molar mass (in g mol^$$-$$1) of H, C and O as 1, 12 and 16, respectively)

The value of y is ________.

In the following reaction, compound Q is obtained from compound P via an ionic intermediate



What is the degree of unsaturation of Q?

In the following reaction sequence, the amount of $$D$$ (in g) formed from $$10$$ moles of acetophenone is ___________.

(Atomic weights in $$g\,mo{l^{ - 1}}:H = 1,C = 12,$$ $$N = 14,O = 16,$$ $$Br = 80.$$. The yield (%) corresponding to the product in each step is given in the parenthesis)