In India on the occasion of marriage the fireworks are used to give coloured flames. The salt of which one of the following metals is used to obtain green flame for this purpose ?

In India on the occasion of marriage the fireworks are used to give co

1.	In India on the occasion of marriage the fireworks are used to give coloured flames. The salt of which one of the following metals is used to obtain green flame for this purpose ?
Answer» `NA` `BA` K `Ca` Answer :B