The colour producing substances used to impart green colour to glass is

The substance used to impart green colour to glass is :

What imparts green colour to a leaf?

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

Iodine imparts brown colour to

Fill in the blanks- The coloured substances that impart permanent colour to the fabrics, food stuffs etc. are called as________.

Substance used for the preservation of coloured fruit juices is