MCQ practice · SSC Biology Board questions · Chapter 4: Bioenergetics
What is the formula of pyruvic acid?
Think it through first, then pick an option.
- a C2H4O3
- b C3H4O7
- c C3H2O3
- d C3H4O3
Answer and explanation
Correct answer: d C3H4O3
The formula of pyruvic acid is C3H4O3 (a three-carbon molecule).
Why the other options are wrong
- a C2H4O3: C2H4O3 has two carbons; pyruvic acid has three.
- b C3H4O7: C3H4O7 has seven oxygens; pyruvic acid has three.
- c C3H2O3: C3H2O3 has two hydrogens; pyruvic acid has four.
Your account is open, so all 30,000+ MCQs from every chapter are yours. Start practising SSC Biology →
Want to keep going?
A free account carries you on to the next questions and opens 30,000+ MCQs from every chapter. Join before launch and Chirkut bundles are 60% off.
The ones you missed, worth one more look