Question

b) Observe the table and answer the following questions.

Liquid / Solution
7
Р
6
Q
R
11
2
S
8
T
ii) Which solution(s) turn into red by adding methyl orange?
i) Which solution(s) to pink by adding phenolphthalein?
ii) If PH = 7. then find he(H)+
iv) Which one indicates pure water?​

Answer 1

Answer:

Phenolphthalein is a synthetic indicator and it is commonly used in acid-base titration.

Phenolphthalein is a synthetic indicator and it is commonly used in acid-base titration.Phenolphthalein undergoes a colour change according to the pH of the solution.

Phenolphthalein is a synthetic indicator and it is commonly used in acid-base titration.Phenolphthalein undergoes a colour change according to the pH of the solution. It is colourless in acidic and neutral medium whereas it changes it's colour to pink in basic medium.

Answer 2

Answer:

Observe the given table and answer the following question:ElementABCDEAtomic number1142719Identify the two elements that belong to the same period