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A solution turns red litmus blue, its pH is likely to be (a) 1 (b) 4 (c) 5 (d) 10

A solution turns red litmus blue, its pH is likely to be
           (a) 1           (b) 4
           (c) 5           (d) 10

Grade:12

2 Answers

Anand Kumar Pandey
askIITians Faculty 5733 Points
2 months ago
Dear Student

Option(d)is correct here.

​​Thanks
KAPADIA DEV
100 Points
2 months ago
Dear student …
 
Generally pH scale is used to determine whether solution is acidic , basic or neutral.
When...
 
pH Value ranges form ---> 0 to 6  ---> Solution is Acidic  -----> It changes Blue litmus paper to Red.
pH Value ranges form ---> 8 to 14 ---> Solution is Basic  -----> It changes Red litmus paper to Blue.
pH Value is ---> 7  ---> Solution is Neutral  -----> It doesn’t effect litmus paper at all.
 
According to given data Litmus is changing Red to Blue...Hence it contains Basic solution...
Range of this solution is 8 to 14....
In the given options 10 is that answer which is in range of 8 to 14.
 
Hence correct option (D) : 10

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