What state of matter are F, Cl and Br in, at room temperature?
F & Cl are gases, Br is a liquid
What colours are Fl,Cl.and Br?
Fl - Yellow, Cl - Green, Br - Reddish brown
Which is the most reactive Halogen?
Fluorine
Explain reaction of Chlorine with Sodium
Burnt with a bright yellow flame, white precipitate of salt remained (NaCl)
Explain reaction of Chlorine with Iron Scrub
Vigorous reaction with iron glowing reddish brown
Explain reaction of Chlorine gas on Lithium
It was very vigorous and reactive. It ate into the glass, Salt was formed
How is Bromine Stored? What happened when the tube was broken?
Stored in a glass tube. Became vapour state as soon as it came in contact with air. Highly reactive
State the uses of Bromine
Used as a fire retardant, In rubber tyres
Which are the two liquid elements in the periodic table?
Mercury and Bromine
What does the word 'Halogen' Mean?
Hal - Salt , Gen- to produce, In Greek
