(BRAINLIEST) Which of these Indicators will you use to check the pH of coloured Solution? Methyl orange
pH meter
Litmus paper

Methyl orangeHope it helps

Knowledge byte;

Methyl orange is also known as phenolphthalein.

B.1 - hydrogren-1 can only mean there is 1 neutron. it's obvious there is 1 proton or else it wouldn't be hydrogen, so they wouldn't put a number after it unless they were indicating the number of neutrons