PART - 1 CH - 4 Carbon and Its Compounds — Science STD 10 — Question
Gujarat BoardEnglish MediumSTD 10SciencePART - 1 CH - 4 Carbon and Its Compounds4 Marks
Question
What is meant by combustion? Explain it by giving an example.
✓
Answer
Combustion is a reaction in which a substance is heated in presence of air or oxygen. $\rightarrow$ During this reaction, carbon present in all allotropic forms undergoes combustion in air to produce carbon dioxide with release of heat and light. $\underset{\text { Carbon }}{ C }+\underset{\text { Oxygen }}{ O _2} \longrightarrow \underset{\begin{array}{c}\text { Carbon } \\ \text { dioxide }\end{array}}{ CO _2}+$ Heat and Light $\rightarrow$ Almost all carbon compounds also release a large amount of heat and light on burning. $\rightarrow$ These are one kind of oxidation reactions. For example, $\underset{\text { Methane}}{ CH _4}+\underset{\text {Oxygen }}{2 O _2} \longrightarrow \underset{\begin{array}{c}\text { Carbon } \\ \text { dioxide }\end{array}}{ CO _2}+\underset{\text { Water }}{2 H _2 O }+$ Heat and Light $\underset{\text { Ethanol }}{ CH _3 CH _2 OH }+\underset{\text { Oxygen }}{3 O _2} \longrightarrow \underset{\begin{array}{c}\text { Carbon } \\ \text { dioxide }\end{array}}{2 CO _2}+\underset{\text {Water}}{3 H _2 O} +$ Heat and Light $\rightarrow$ Saturated hydrocarbons will generally give a clean flame, while unsaturated hydrocarbons give a yellow flame with a release of black smoke.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.