A is a binary compound of a univalent metal. When 1.422 g of A reacts completely with 0.321 g of sulphur in an evacuated and sealed tube, 1.743 g of white crystalline solid B produced, which produces a hydrated double salt C with `Al_(2)(SO_(4))_(3)`. Identfy A, B and C.

2.18g of an organic compound containing sulphur produces 1.02 g of BaSO_(4) . The percentage of sulphur in the compound is

1.60 g of a metal A and 0.96 g of a metal B when treated with excess of dilute acid, separately, produced the same amount of hydrogen. Calculate the equivalent weight of A if the equivalent weight of B is 12.

10 g of a hydrated salt of BaCI_2 was dissolved in one litre water. The solution was then treated with 1.65 litre of 0.05 N AgNO_3 till complete precipitation. The number of water molecules in hydrated salt are :

When an inorganic compound reacts with SO_2 in aqueous medium produces (A). (A) on reaction with Na_2 CO_3 gives the compound (B) which with sulphur gives a substance (C) used in photography. The compound (C) is.

On dissolving 2.0 g of metal in sulphuric acid ,4.51 g of the metal sulphate was formed . The specific heat of the metal is 0.057 cal g^(-1).^(@)C^(-1) . What is the valency of metal ?

A mass of 2.72 g of an alloy containing Pb, required for dissolved in HNO_3 containing 50% by mass of HNO_3 . When a H_(2)SO_(4) solution was added, 1.5 g of precipitate (A) appeared H_(2)S gas was then passed into the remaining solution a secfond precipitate was formed which when calcined in air produced 1.6 g of a compound B. Determine the composition of an alloy. (Al does not form Al_(2)S_(3) due to the hydrolysis of sulphide).

If 50 ml of A_(2)B_(3) reacts completely with 200 ml of C_(2) in closed vessel according to the equation , 2A_(2)B_(3)(g)+5C_(2)(g) to 3C_(3)B_2(g)+CA_(4)(g) . The composition of the mixture of gases is :

How much electricity in terms of Faraday is required to produce. a. 20.0g of Ca from molten CaCl_(2) b. 40g of Al from molten Al_(2)O_(3)

1.6 g of an organic compound containing sulphur,produces 0.233 g of BaSO_(4) . Calculate % of S in the organic compound . (Given : Atomic weight of Ba = 137 )

No of compounds producing gas on hydrolysis (with H_(2)O ) is Al_(4)C_(3),BaC_(2),Mg_(2)C_(3),SiC,B_(2)H_(6),Fe_(3)C