Methyl orange in a basic solution is which color?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Study for the IGCSE Edexcel Chemistry Test. Access flashcards and multiple choice questions with hints and explanations. Get ready for your exam!

Multiple Choice

Methyl orange in a basic solution is which color?

Explanation:
Indicators show different colors because they exist in two forms that interconvert with the acidity of the solution. Methyl orange has a red form when it’s in acidic conditions and a yellow form when it’s deprotonated in basic conditions. In basic solutions, the deprotonated form dominates, so the color seen is yellow. That’s why yellow is the correct choice. The red color would occur in strongly acidic solutions, and blue or pink aren’t colors methyl orange exhibits in its usual pH range.

Indicators show different colors because they exist in two forms that interconvert with the acidity of the solution. Methyl orange has a red form when it’s in acidic conditions and a yellow form when it’s deprotonated in basic conditions. In basic solutions, the deprotonated form dominates, so the color seen is yellow. That’s why yellow is the correct choice. The red color would occur in strongly acidic solutions, and blue or pink aren’t colors methyl orange exhibits in its usual pH range.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy