Questions in chemical-aritmatic

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	$KMn{O_4}$ reacts with ferrous ammonium sulphate according to the equation $MnO_4^ - + 5F{e^{2 + }} + 8{H^ + } \to M{n^{2 + }} + 5F{e^{3 + }} + 4{H_2}O$, here 10 ml of 0.1 M $KMn{O_4}$ is equivalent to
	$Ca{(OH)_2} + {H_3}P{O_4} \to CaHP{O_4} + 2{H_2}O$ the equivalent weight of ${H_3}P{O_4}$ in the above reaction is
	The mass of $BaC{O_3}$ produced when excess $C{O_2}$ is bubbled through a solution of $0.205 mol$ $Ba{(OH)_2}$ is
	The amount of water that should be added to 500 ml of 0.5 N solution of $NaOH$to give a concentration of 10 mg per ml is
	Number of moles of $KMn{O_4}$required to oxidize one mole of $Fe({C_2}{O_4})$in acidic medium is
	A hydrocarbon contains 86% carbon, 488ml of the hydrocarbon weight 1.68 g at STP. Then the hydrocarbon is an
	The ratio of amounts of ${H_2}S$ needed to precipitate all the metal ions from 100 ml of 1 M $AgN{O_3}$ and 100 ml of 1 M $CuS{O_4}$ will be
	An electric discharge is passed through a mixture containing 50 c.c. of ${O_2}$and 50 c.c. of ${H_2}$. The volume of the gases formed (i) at room temperature and (ii) at $1100C$ will be
	100 ml of 0.1 N hypo decolourised iodine by the addition of $x$ g of crystalline copper sulphate to excess of KI. The value of $‘x’$ is (molecular wt. of $CuS{O_4}.5{H_2}O$is 250)
	How many grams of caustic potash required to completely neutralise $12.6 gm$ $HN{O_3}$