Solve all the questions

Solve all the questions W of i' ) of tix of iii) iv the md OPS following A will Ethene with •n of air? i HOW is in ii. is into Give . typical i) Wtwn m•id is by OR of ninxe. is of 'he of nitric uid nitrate is 'he of 'h is 'v) Which s i e ed Write b. i) Writc the ror the the action of water On magnesium nitride. ii) How is ammonia collected? iii) Why is ammoniz not collected overwater? iv Wh ich C Ompound is normally used as a doing agent for ammonia? 141 Question 7 a. A hydrocarbon has the following percentage composition hydrogen=22%, and oxygen—71 Calculate the empirical formula of the compound. If its molecular mass is 96, calculate its molecular fonnula. [31 b. What is scen when aluminium is treated with: i) Hot concentrated H2S04? ii) NaOH solution? Give balanced equation in both the cases. c. Give the name and formulae of two ores of zinc. d When excess lead nitrate solution was added toa solution of sodium sulphate 30.30 g of lead sulphate was precipitated. What mass of sodium sulphate was present in the original solution? The equation that represents the reacti(hl is'. (31 NaaS04+Pb 0=16, Na=23, sz32, Pb-207)