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JEE Main || Physical Chemistry || Super Quiz 2
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Question 1
The ratio of mass percent of C and H of an organic compound CXHYOZ
is 6 : 1. If one molecule of the above compound 
contains half as much oxygen as required to burn one molecule of compound 
completely to 
and 
The empirical formula of compound 
is :
is 6 : 1. If one molecule of the above compound contains half as much oxygen as required to burn one molecule of compound completely to and The empirical formula of compound is :Question 2
Reaction of 6.0 g of A,
atoms of B, and 0.036 mol of C yields 4.8 g of compound
. If the atomic mass of A and C are 60 and 80 amu, respectively, the atomic mass of B (in amu)is (Avogadro no. 
):Question 3
1 gram of a carbonate 
on treatment with excess HCl produces 0.01186 mole of CO2. The molar mass of 
in g mol-1 is:
on treatment with excess HCl produces 0.01186 mole of CO2. The molar mass of in g mol-1 is: Question 4
The density of a solution prepared by dissolving 120 g of urea (mol. Mass = 60 u) in 1000g of water is 1.15 g/mL. The molarity of this solution is :
Question 5
Equal masses of methane and oxygen are mixed in an empty container at 25C. The fraction of the total pressure exerted by oxygen is
Question 6
29.5 mg of an organic compound containing nitrogen was digested according to Kjeldahl’s method and the evolved ammonia was absorbed in 20 mL of 0.1 M HCl solution. The excess of the acid required 15 mL of 0.1 M NaOH solution for complete neutralization. The percentage of nitrogen in the compound is
Question 7
The ammonia evolved from the treatment of 0.30 g of an organic compound for the estimation of nitrogen was passed in 100 mL of 0.1 M sulphuric acid. The excess of acid required 20 mL of 0.5 M sodium hydroxide solution hydroxide solution for complete neutralization. The organic compound is
Question 8
If 10–4 dm3 of water is introduced into a 1.0 dm3 flask at 300 K, how many moles of water are in the vapour phase when equilibrium is established?
(Given : Vapour pressure of H2O at 300 K is 3170 Pa; R = 8.314 J K–1 mol–1)
(Given : Vapour pressure of H2O at 300 K is 3170 Pa; R = 8.314 J K–1 mol–1)
Question 9
The molecular formula of a commercial resin used for exchanging ions in water softening is C8H7SO3Na (Mol. wt. 206). What would be the maximum uptake of Ca2+ ions by the resin when expressed in mole per gram resin?
Question 10
Experimentally it was found that a metal oxide has formula M0.98O. Metal M, is present as M2+ and M3+ in its oxide. Fraction of the metal which exists as M3+ would be
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Apr 8JEE & BITSAT
