Hydrogen and its compoundHard
Question
100 g sample of clay (containing 19% H2O, 40% silica. and inert impurities as rest) is partially dried so as to contain 10% H2O.
Which of the following is/are correct statements(s) ?
Which of the following is/are correct statements(s) ?
Options
A.The percentage of silica in it is 44.4 %.
B.The mass of partially dried clay is 90.0 g.
C.The percentage of inert impurity in it is 45.6%
D.The mass of water evaporated is 10.0 g.
Solution
Silica H2O Impurities
% in original clay] ⇒ 40 19 100 - (40 + 19) = 41
% after partial drying] ⇒ a 10 100 - (a + 10) = 90 - a
On heating, only water evaporates from clay, whereas silica and impurities are left as it is. Therefore, % ratio of silica and impurities remains unchanged i.e.,
, ∴ a = 44.4 %
% of impurities after partial drying = (90 - a) = (90 - 44.4) = 45.6%
Mass of H2O evaporated = (19 - 10) = 9 g
% in original clay] ⇒ 40 19 100 - (40 + 19) = 41
% after partial drying] ⇒ a 10 100 - (a + 10) = 90 - a
On heating, only water evaporates from clay, whereas silica and impurities are left as it is. Therefore, % ratio of silica and impurities remains unchanged i.e.,
, ∴ a = 44.4 %% of impurities after partial drying = (90 - a) = (90 - 44.4) = 45.6%
Mass of H2O evaporated = (19 - 10) = 9 g
Create a free account to view solution
View Solution FreeMore Hydrogen and its compound Questions
Which of the following gives propane on hydrolysis?...The weight of NaCl decomposed by4.9g of H2SO4, if 6g of sodium hydrogen sulphate and 1.825 g of NCl, were produced in th...The longest wavelength line in lyman series of hydrogen spectrum is :-...In nitroprusside ion and NO exist as FeII and NO+ rather than FeIII and NO. These forms can be differentiated by :...In the following sequence of the reactions, what is D ?...