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At pH lt3.1, the indicator methyl red is...

At `pH lt3.1`, the indicator methyl red is coloured red ,at `pH gt 6.3` , it is yellow and at the intermediate values of the `pH` ,it is orange .What will the colour of indicator be in a `0.1 M` solution of `NH_(4)Br`? Take `pK_(b)(NH_(4)OH)=4.74`.

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