A polystyrene, having the formula `Br_3C_6H_3(C_2H_6)_n` was prepared by heating styrene with tribromobenzoic peroxide in the absence of air. If it was found to contain `10.46%` bromine by weight, Find the value of n.

What happens when C_2H_6 is heated (700^@C) in absence of air ?

(C_(2)F_(4))_n s a polymeric substance where n is a large number. It is prepared by polymerisation of C_(2)F_4 in presence of sulphur catalyst. The final product is found to contain 0.012% of S. find the value of n if the polymeric molecule contains three S-atoms.

If .^(n)C_(4)=21xx.^(n/2)C_(3) , find the value of n.

At constant temperature and pressure the rate of diffusion of H_(2) gas is sqrt(15) times that of C_(n)H_(4n-2) gas. Find the value of n.

A compound on analysis was found to contain C=34.6%, H=3.85% and O = 61.55% . Calculate the empirical formula.

How many strutural isomers having molecular formula C_(3)H_(5)Br_(3) is possible?

Can we prepare anhydrous AlCl_3 by heating AlCl_3. 6H_2O ?

An organic compound "X" having molecular formula c_6H_7O_7N has 6 carbon atoms in a ring system, two double bonds and also a nitro group as substituent, "X" is