PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free Demo1. Vinu dissolves \(50 g\) of sugar in \(250 ml\) of hot water, Sarath dissolves \(50 g\) of same sugar in \(250 ml\) of cold water. Who will get faster dissolution of sugar? and Why?
i. The solubility of a in a liquid increases as rises.
ii. Sugar will dissolve in Vinu, because Vinu dissolves \(50 g\) of sugar in \(250 ml\) of hot water and Sarath dissolves \(50 g\) of sugar in \(250 ml\) of cold water.
2. 'A' is a blue coloured crystaline salt. On heating it loses blue colour and to give 'B'. When water is added, 'B' gives back to 'A'. Identify A and B, write the equation.
i. is the blue-colored crystalline salt (A).
ii. Copper sulphate pentahydrate loses its blue colour when heated, yielding anhydrous (B).
iii. When is added to anhydrous (B), is formed (A).
Register for free to see more content