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Q: In universal indicators a pH of 7 is shown with
  • A. Pink colour
  • B. Green colour
  • C. Blue colour
  • D. Yellow colour
Correct Answer: Option B - In universal indicators a pH of 7 is shown with green colour. • Universal indicator can have many different colours, from red for strong acids to dark purple for strong bases. • The liquid which is neutral (pH = 7) is shown by the green colour by the indicator (universal).
B. In universal indicators a pH of 7 is shown with green colour. • Universal indicator can have many different colours, from red for strong acids to dark purple for strong bases. • The liquid which is neutral (pH = 7) is shown by the green colour by the indicator (universal).

Explanations:

In universal indicators a pH of 7 is shown with green colour. • Universal indicator can have many different colours, from red for strong acids to dark purple for strong bases. • The liquid which is neutral (pH = 7) is shown by the green colour by the indicator (universal).