In which chemical reaction does the substance react with oxygen to produce heat?
Combustion
Combustion is correct.
Combustion is a reaction in which a substance reacts with oxygen and gives out heat, and usually light as well. The substance that burns is called a combustible substance or fuel.
For example, when methane burns: \(\mathrm{CH_4 + 2O_2 \rightarrow CO_2 + 2H_2O}\) + heat.
Oxidation is the wider term for any gain of oxygen and need not release noticeable heat, as in slow rusting, and an explosion is only a very rapid form of combustion.
Important Questions from Chemical Reaction
Which of the following statement is/are true?
I. In physical change new substance is formed. substance is formed.
II. In chemical change no new substance is formed.
Which of the following cells involves similar chemical reactions?
The information not obtained from balanced chemical equation is
Oxygen cannot be obtained by which one of the following methods?
Which of the following statement is correct?
I. Insoluble salt is obtained by precipitation reaction.
II. Addition of oxygen or loss of hydrogen is called oxidation.
