A compound with empirical formula AB2 has the vapour density equal to its empirical formula weight. Find its molecular formula.
A metal carbonate has a formula M2CO3. What is the formula of its oxide and chloride?
An unknown compound 'A' has a molecular formula C4H6. When 'A' is treated with excess of Br2 a new substance with molecular formula C4H6Br2 formed. 'A' forms a white precipitate with Tollen's reagent. Then 'A' may be