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ICSE Class 10 Chemistry 2020 Paper

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Complete the following by selecting the correct option from the choices given :
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Question : 52 of 86
Marks: +1, -0
The indicator which does not change colour on passage of HCl\mathrm{HCl} gas is ............
(methyl orange, moist blue litmus, phenolphthalein)
Solution:  
Phenolphthalein
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