A. 14
B. 2.5
C. 28
D. 1.25
Related Mcqs:
- 1 gm mole of an alcohol whose molecular weight is 74 contains 48 gms of carbon, 10 gms of hydrogen and 16 gms of oxygen. Its molecular formula is__________________?
A. C4H9OH
B. C3H21OH
C. (C2H4)2H2.OH
D. C2H33OH - At what temperature, given mass of a gas that occupies a volume of 2 litres at N.T.P. will occupy a volume of 4 litres, if the pressure of the gas is kept constant ?
A. 273°C
B. 273°K
C. 100°C
D. 200°C - 6 gms of magnesium (atomic weight = 24), reacts with excess of an acid, the amount of H2 produced will be ______________ gm?
A. 0.5
B. 1
C. 3
D. 5 - A rigid vessel containing three moles of nitrogen gas at 30°C is heated to 250°C. Assume the average capacities of nitrogen to be Cp = 29.1 J/mole.°C and, Cv = 20.8 J/mole.°C. The heat required, neglecting the heat capacity of the vessel, is__________________?
A. 13728 J
B. 19206 J
C. 4576 J
D. 12712 J - In a mixture of benzene vapor and nitrogen gas at a total pressure of 900 mm Hg, if the absolute humidity of benzene is 0.2 kg benzene/kg nitrogen, the partial pressure of benzene in mm Hg is__________________?
A. 180
B. 60.3
C. 720
D. 200 - 40 gms each of the methane and oxygen are mixed in an empty container maintained at 40°C. The fraction of the total pressure exerted by oxygen is_________________?
A. 1/2
B. 1/3
C. 1/4
D. 2/3 - Weight of 56 litres of ammonia at N.T.P. is _____________ gm?
A. 2.5
B. 42.5
C. 56
D. 2800 - The number of atoms of oxygen present in 11.2 litres of ozone (O3) at N.T.P. are__________________?
A. 3.01 × 1022
B. 6.02 × 1023
C. 9.03 × 1024
D. 1.20 × 1024 - The pressure of ‘V’ litres of a dry gas is increased from 1 to 2 kgf/cm2 at a constant temperature. The new volume will become___________________?
A. V/2
B. 2V
C. V/4
D. V2 - Osmotic pressure exerted by a solution prepared by dissolving one gram mole of a solute in 22.4 litres of a solvent at 0°C will be _______________ atmosphere?
A. 0.5
B. 1
C. 1.5
D. 2
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