ജലത്തിന്റെ സവിശേതകള്‍

2 comments:

  1. sir, im a teacher handling chemistry in std 8.i cant open the u tube picturs.what shall i do?
    one more question why sea water is saline where as river water is pure?

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  2. pls publish the answer key of VIIIth std-IInd term exam

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