ایک گرام پانی میں تقریباً کتنے ایٹمز ہوتے ہیں؟ (H=1، O=16، Nₐ=6.022×10²³)
- 1.004×10²³
- 6.022×10²³
- 0.334×10²³
- 2.004×10²³
Answer / جواب
1.004×10²³

Class 9 Chemistry · Chapter 4 · Retained syllabus for Annual 2027
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1.004×10²³
Ca₃P₂
6.022×10²³ amu
CH₂
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