13.
Write you observation when the following processes take place,
(i) An aqueous solution of sugar is heated to dryness
(ii) A mixture of iron filings & sulphur powder is heated strongly
(ii) A beam of light is passed through a colloidal solution.
(iv) Dilute HCl is added to the mixture of iron & sulphur & heated strongly
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Answer:
2nd answer is correct u can choose this
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ਠਨਝਠਪਡ ਡੰਗਰ ਰੰਗ ਡਠਟਟਨ ਧਪ
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