Stoichiometry Na₂SO₄. 10H₂O crystals are formed by cooling 100 Kg of 30% by weight aqueous solution of Na₂SO₄. The final concentration of the solute in the solution is 10%. The weight of crystals is 58.65 45.35 20 32.2 58.65 45.35 20 32.2 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry A long cylinder and a sphere both of 5 cms diameter are made from the same porous material. The flat ends of cylinder are sealed. Both the cylinder and sphere are saturated with the same solution of sodium chloride. Later both the objects are immersed for a short and equal interval of time in a large tank of water which is well agitated. The fraction of salt remaining in the cylinder and the sphere are Xc and Xs respectively. Which of the following statement is correct? Xc < Xs Xc > Xs Xc greater/less than Xs depending on the length of the cylinder Xc = Xs Xc < Xs Xc > Xs Xc greater/less than Xs depending on the length of the cylinder Xc = Xs ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry A reduction process is accompanied with increase in the Oxidation number Both A & B Number of electrons Neither A nor B Oxidation number Both A & B Number of electrons Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Normality of a solution does not change with the increase in the Solute concentration Pressure Temperature Dilution of the solution Solute concentration Pressure Temperature Dilution of the solution ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Sodium __________ has inverted solubility curve i.e. its solubility increases with the lowering of temperature. Chloride Carbonate (monohydrate) Thiosulphate Bisulphite Chloride Carbonate (monohydrate) Thiosulphate Bisulphite ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry A car tyre of volume 0.057 m³ is inflated to 300 kPa at 300 K. After the car is driven for 10 hours, the pressure in the tyre increases to 330 kPa. Assume air is an ideal gas and Cv for air is 21 J/mole.K. The change in the internal energy of air in the tyre in J/mole is 630 880 760 380 630 880 760 380 ANSWER DOWNLOAD EXAMIANS APP
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