What imparts green colour to a leaf?

The substance that imparts green colour to the plants is known as

A laboratory reagent imparts green colour to the flame. On heating with solid K_(2)Cr_(2)O_(7) and conc. H_(2)SO_(4) it evolves a red gas. Identify the reagent .

Which of the following imparts green colour to the burner flame?

Members of which algal class impart red colour to red sea

A salt imparts a yellow colour to a borax bead in an oxidising flame. What would be the colour of the bead in a reducing flame?

Name the following: The pigment which gives green colour to the leaves.

Ions of an element of group 1 participate in the transmission of nerve signals and transport of sugars and aminoacids into cells. This element imparts yellow colour to the flame in flame test and forms an oxide and a peroxide with oxygen. Identify the element and write chemical reaction to show the formation of its peroxide. Why does the element impart colour to the flame?

Which of the following s-block metals do not impart any colour to the flame-

Why is the colour of a leaf kept in the dark frequently yellow, or pale green? Which pigment do you think is more stable?

Why is the colour of a leaf kept in the dark turns yellow, or pale green? Which pigment do you think is more stable?