Why mobile cover turns yellow? #shorts |Fact2Fact|EP-21

When 2 to 3 drops of beedict's reagent are added to a urine sample and heated gently, it turns yellow. This colour change indicates that

Why do raw green mangoes turn to yellow colour on ripening?

Why does ZnO show increased electrical conductivity and turns yellow on heating?

When H_2S has is passed through an orange red solution (X), the solution turns milky. When an alkali is added to this orange red solution it turns yellow and on acidifying this yellow solution again turns orange red. X is

It is a well known fact that during a total solar eclipes the disc of the moon almost completely covers the disc of the sun. From this fact and from the information you can gather from Solved Examples 3 and 4 on page 1//44, determine the approximate diameter of the moon.

Why does CO_(2) turn lime water milky ?