The correct shape and $$I - I - I$$ bond angles respectively in $$I_3^ - $$ ion are :

The diazonium salt of which of the following compounds will form a coloured dye on reaction with $$\beta$$-Naphthol in NaOH?

Match List - I and List - II.

	List-I		List-II
(a)		(i)	$$\mathrm{Br}_{2} / \mathrm{NaOH}$$
(b)		(ii)	$$\mathrm{H}_{2} / \mathrm{Pd}-\mathrm{BaSO}_{4}$$
(c)		(iii)	$$\mathrm{Zn}(\mathrm{Hg}) / \mathrm{H}$$ Conc. $$\mathrm{HCl}$$
(d)		(iv)	$$\mathrm{Cl}_{2}$$ Red $$\mathrm{P}, \mathrm{H}_{2} \mathrm{O}$$

Choose the correct answer from the options given below :

The formula of a gaseous hydrocarbon which requires 6 times of its own volume of O₂ for complete oxidation and produces 4 times its own volume of CO₂ is C_xH_y. The value of y is _____________.