Stoichiometry In the reaction, Ca + 2H₂O = Ca(OH)₂ + H₂ ; what volume (c.c.) of hydrogen at STP would be liberated, when 8 gm of calcium reacts with excess water? (atomic weight of calcium = 40) 4480 2240 1120 0.4 4480 2240 1120 0.4 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry One kg of saturated steam at 100°C and 1.01325 bar is contained in a rigid walled vessel. It lias a volume of 1.673 m³. It cools to 98°C ; the saturation pressure is 0.943 bar ; one kg of water vapour under these conditions has a volume of 1.789 m³. The amount of water vapour condensed (in kg) is 0.065 1 0.1 0.065 1 0.1 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Assume that benzene is insoluble in water. The normal boiling points of benzene and water are 80.1 and 100°C respectively. At a pressure of 1 atm, the boiling point of a mixture of benzene and water is 80.1°C Greater than 80.1°C but less than 100°C 100°C Less than 80.1°C 80.1°C Greater than 80.1°C but less than 100°C 100°C Less than 80.1°C ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Two solutions A₁ and A₂ have pH value of 2 and 6 respectively. It implies that the solution Both A & C A₁ is more alkaline than solution A₂ A₁ is very slightly acidic A₁ is highly acidic Both A & C A₁ is more alkaline than solution A₂ A₁ is very slightly acidic A₁ is highly acidic ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The ratio of existing moles of vapor per mole of vapor free gas to the moles of vapor that would be present per mole of vapor free gas, if the mixture were saturated at the existing temperature & pressure, is termed as the Percentage saturation None of these Relative humidity Relative saturation Percentage saturation None of these Relative humidity Relative saturation ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry A vapor whose partial pressure is less than its equilibrium vapor pressure is called a __________ vapor. Superheated None of these Supersaturated Saturated Superheated None of these Supersaturated Saturated ANSWER DOWNLOAD EXAMIANS APP
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