Chemistry · Periodic Classification of Elements
To study the chemical properties of elements, Mendeleev concentrated on their compounds formed with which two elements?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Nitrogen and Chlorine
- 2Hydrogen and Oxygen✓
- 3Carbon and Hydrogen
- 4Oxygen and Sulphur
Correct answer
Hydrogen and Oxygen
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