Question 15 Consider an indicator for which K 1.0 x 101, and that ionizes as follows: l(aq) + H2(e) = H₂+(aq) - Yellow + In Red -(aq) Which of the following statements is true? (i) The predominant. colour in acid solution is yellow. (ii) In the middle of the pH range of its colour change, a solution containing the indicator will probably be orange. (iii) At pH 8, most of the indicator is present in the un-ionised form. (iv) The indicator changes colour at a pll of 4. (y) The indicator can be used for the titration of a strong acid with a strong base. A (i), (iii), (v) C (ii), (iv), (v) E (i), (ii), (iii), (v) B (i), (ii), (iv) D (i), (iv), (v) F (i), (ii), (v) 3

Question 15 Consider an indicator for which K 1.0 x 101, and that ionizes as follows: l(aq) + H2(e) = H₂+(aq) - Yellow + In Red -(aq) Which of the following statements is true? (i) The predominant. colour in acid solution is yellow. (ii) In the middle of the pH range of its colour change, a solution containing the indicator will probably be orange. (iii) At pH 8, most of the indicator is present in the un-ionised form. (iv) The indicator changes colour at a pll of 4. (y) The indicator can be used for the titration of a strong acid with a strong base. A (i), (iii), (v) C (ii), (iv), (v) E (i), (ii), (iii), (v) B (i), (ii), (iv) D (i), (iv), (v) F (i), (ii), (v) 3

Chemistry by OpenStax (2015-05-04)

1st Edition

ISBN:9781938168390

Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Chapter15: Equilibria Of Other Reaction Classes

Section: Chapter Questions

Problem 76E: Write the Lewis structures of the reactants and product of each of the following equations, and...

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