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सी.आई.एस.सी.ई.आयसीएसई ICSE Class 8

How Do the Following Help in Bringing About a Chemical Change? Heat .

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प्रश्न

How do the following help in bringing about a chemical change?

heat. 

एका वाक्यात उत्तर
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उत्तर

 Some chemical reactions take place only in the presence of heat.

e.g. When lead nitrate is heated, it breaks into lead monoxide, nitrogen dioxide and oxygen.

\[\ce{\underset{\text{(lead nitrate)}}{2Pb(NO3)2}->[heat]\underset{\text{lead monoxide}}{2PbO} +\underset{\text{nitrogen dioxide}}{4NO2} + O2}\]

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 6: Chemical Reactions - Exercise 1 [पृष्ठ ७३]

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एस.पी. सिंह Concise Chemistry [English] Class 8 ICSE
पाठ 6 Chemical Reactions
Exercise 1 | Q 3.4 | पृष्ठ ७३
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