General In India at the occasion of marriages, the fire works used give green flame. Which one of the following radicals may be present ? By User On April 3, 2024 (A) Na+ (B) K+ (C) Ba2+ (D) Ca2+ Ans. C Sol. Barium containing compound produces green colour during flame test. Related Posts:50 GK questions with answers class 7Flames and their StructureWhat is located in Noida Sector 62?What is indicated by sooty flame?What is the formula for barium hydroxide?what is common ion effect?