PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free Demo1. What happens when dilute hydrochloric acid is added to iron fillings?
2. When Iron nails are added to an aquous solution of copper sulphate, a chemical change occurs, which of the following is not true about this reaction?
Answer variants:
Chlorine gas and Iron hydroxide are produced
Hydrogen gas and Iron chloride are produced
Iron nails dissolves completely
Iron nails becomes brownish colour
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