Choose the option which shows common feature in the relationship given in each question.
Rourkela Bokaro: Durgapur
Choose the option which shows common feature in the relationship given in each question.
Chlorine Fluorine: Iodine
Choose the option which shows common feature in the relationship given in each question.
Petrol: Phosphorus: Cooking gas
Choose the option which shows common feature in the relationship given in each question.
Green: Violet: Orange
Choose the option which shows common feature in the relationship given in each question.
Supernova: Protostar: Red Giant