Vignan paper solution

Probability | JEE Mains 2018 Online Paper Solution | All Shift

Note the change in colour when a blue litmus paper is dipped in an aqueous solution of sodium hydroxide.

Unit And Measurement | JEE Main 2018 Online Paper Solution Physics | Percentage Error Calculation

3 Dimensional Geometry | JEE Mains 2018 Online Paper Solution | All Shift

When the strip of pH paper was put in a given solution the pH paper changes to orange red. The given solution is most likely to be of:

A solution 'X' give orange colour when a drop of it falls on pH paper, while another solution 'Y' gives bluish colour when a drop of it falls on pH paper. What is the nature of both the solutoins? Determine the pH of solution 'X' and 'Y'?