Mechanisms of Chemical Change F.1 Proton Transfer Reactions (id: 00f7f5c26)

本题目来源于试卷: Mechanisms of Chemical Change F.1 Proton Transfer Reactions，类别为 IB化学

[单选题]
Given the following indicatorsi5e.,im m0 1eqiqku/k and tknml) -5*4qraldp 9rsheir behaviours, what will be the correct colours of a solution of 1.0 M KOH tested with eakm-ar*l9s )54nd lrpqch indicator?

Indicator	pH range	Colour change (Acid- alkali)
Methyl orange	3.1- 4.4	Red – Orange
Bromocresol green	3.8 - 5.4	Yellow - Blue
Phenolphthalein	8.3 - 10.0	Colourless - Pink

A. Methyl orange is Red Bromocresol green is Yellow Phenolphthalein is Colourless
B. Methyl orange is Orange Bromocresol green is Blue Phenolphthalein is Pink
C. Methyl orange is Orange Bromocresol green is Blue Phenolphthalein is Colourless
D. Methyl orange is Orange Bromocresol green is Yellow Phenolphthalein is Pink


参考答案:  B


本题详细解析:
A 1.0M solution of KOH would have a pH of 14. Methyl orange, bromocresol gre6d smh(a29bks6u,a iben, and phenolphthalein would be orange, yemaubab6 ds ,962 sk(hillow, and green respectively at this pH.

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