What chemical reaction shows a change in colour?

Answer 1

When a fruit ripens it changes color. When green vegetables are overcooked they change color( the difference between frozen and canned peas)sun light can fade curtains, put vinegar(acid) on some vegetables and they turn color. Put baking soda on green beans and they turn blue, baking soda will turn red vegetabls blue also.toasting bread. Baking a cake(the top crust)
cooking red meat, cooking egg white, cooking fish(translucent to white) bleach on a colored shirt

These are all household chemical changes.

Answer 2

Almost all the displacement reactions show colour change.
eg:- as a zinc granule is dipped in a solution of coppersulphate solution ,it changes from blue to a colourless solution as the zinc displace Cu from Copper Sulphate.

Answer 3

Signs that show a chemical reaction has taken place are:

A change in colour
A change in temperature (usually gets hot)

Answer 4

chemical reactions change colour by by absorbing a suitable amount of light
or by transfering its electron to its higher orbit by photoelectric effect

Answer 5

in all probability maximum oxidation/alleviation, pH [sometime devoid of indicator], pyrolytic, salt formation, dissolution... come to think of of it, there is not any longer that plenty which does no longer exchange shade [or coloration] :-) - growing to be grass alterations colourless gasoline to eco-friendly stuff [plus some different issues, previously and after]

Answer 6

many do. acid-base titrations are one of the primary example in general chemistry

Answer 7

acid-base

Answer 8

bleach.