1. Tardigrade
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  3. Chemistry
  4. Statement 1: Methyl orange is used as indicator in Na 2 CO 3 titrating against HCl solution Statement 2: The pH range of methyl orange is 3.1 to 4.5

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Q. Statement 1 : Methyl orange is used as indicator in $Na _2 CO _3$ titrating against $HCl$ solution
Statement 2 : The $pH$ range of methyl orange is $3.1$ to $4.5$

Equilibrium

Solution:

The $pH$ of the solution at the neutralisation point region is about $3.5$ to 7 and methyl orange gives its colour change between pH $3.1$ to $4.4$