Question

beta carotene is red coloured compound give reason

Answer 1

It's because carotene is a red coloured compound and so beta carotene too is a red coloured compound..

Answer 2

The long conjugated chains of double bonds in beta carotene is the main reason of it's red colour.

In this conjugated chain ,the blue and green lights are absorbed and the red, yellow colours reflect back into our eyes.

That's why beta carotene's colour is red or reddish orange.