Answer: correct option is B. Energy is released by the reaction
Explanation:
The exothermic reactions are the reactions in which energy is released.The released energy can be in the form of heat or light.
Temperature of the surrounding also increases.
For example:
- Neutralization reaction between acid and base.
\(HCl+NaOH\rightarrow NaCl+H_2O\)
Above reaction takes place in the aqueous medium.After the reaction mixtures becomes hot.
- Burning of Magnesium ribbon
\(Mg(s)+O_2\rightarrow MgO\)
In above reaction energy is released in the form light.
