Teaching UP B.Ed (Paper 1 & 2) Mock Test 2025 General Science Chemistry Basic Concepts of Chemistry

10 গ্রাম ওজনের একটি জলের ফোঁটায় কতগুলি জলের অণু উপস্থিত থাকে?

1
0.33 x 1024
2
0.177 x 1024
3
1.08 x 1024
4
6.022 x 1023
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