Class 9 Chemistry e-Book's MCQs - Complete
Avogadro Number and Mole: Class 9 Chemistry MCQ App & e-Book - 140
Apps:
MCQ: 140
The number of atoms of hydrogen in 2 moles of NH3
- 5 * 1023
- 3.01 * 1023
- 3.61 * 1024
- 4 * 1023
c
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9th Grade Chemistry MCQs eBook Download
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