PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free DemoAnswer the following questions:
Answer variants:
Rusting of iron
Burning of gas
A displacement reaction is the conversion of two reactants react to form a product. Example: \(NH_4C\)l(s) → \(NH_3\)(g) + \(HC\)l(g)
\(Mg\)(s) + \(HCl\)(aq) → \(MgCl_2\)(aq) + \(H_2\)(g)
1. Which one of the following is a chemical change? Give reason also.
(a) Burning of gas
(b) Melting of wax
(a) Burning of gas
(b) Melting of wax
2. Which one is a chemical change:
Rusting of iron or melting of iron?
Rusting of iron or melting of iron?
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