Join WhatsApp ChannelDaily MCQs & Exam Updates
Everyday Science Easy FPSC Uploaded: 01 Sep 2026

Which of the following is used as a natural indicator to test acids and bases?

  • A Starch
  • B Litmus
  • C Iodine
  • D Glucose
Correct Answer: Option B — Litmus
Explanation:
Litmus, a dye extracted from lichens, turns red in acidic solutions and blue in basic solutions, making it a common natural indicator.
Submitted by: PaperMCQs
Related MCQs