හයිඩ්රොකාබන | Hydrocarbons
2 videos • 148 views • by Melody Of Science
1
O/L Science Sinhala | Grade 11 | හයිඩ්රෝකාබන | Hydrocarbons | 14 වන ඒකකය | Unit 14 | 1 කොටස
Melody Of Science
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2
O/L Science Sinhala | Grade 11 | හයිඩ්රෝකාබන | Hydrocarbons | 14 වන ඒකකය | Unit 14 | 2 කොටස
Melody Of Science
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