SSC MTS EXAM

Detailed explanation-1: -Your best friend decides to toast a piece of bread, but leaves it in the toaster too long. The bread is black and the kitchen is full of smoke. Chemical because there is a change in color and the smoke is a change of substance.

Detailed explanation-2: -Answer and Explanation: Toasting bread is a chemical reaction because the heat applied to the bread causes a process called the Maillard reaction. This is a chemical reaction that causes the browning of food when cooking.

Detailed explanation-3: -When does bread become toast? The browning process we call toasting is an example of the Maillard reaction, in which amino acids and sugars interact to produce the characteristic brown color, texture, and flavor we know as toast.

Detailed explanation-4: -If someone ever left bread in a toaster too long, the bread eventually burns and turns black. These changes involve visual clues that makes the process a chemical change. Since there is a change in the color of the bread and there is evolution of gases when it burns, a chemical reaction has occurred.