tests for gases

Question 1

test for hydrogen

Answer 1

squeaky pop test — take a lighted splint and insert it into the tube if you hear a squeaky pop, then its hydrogen

Question 2

test for oxygen

Answer 2

inserting a glowing splint into a tube if it relights then there’s oxygen

Question 3

test for carbon dioxide

Answer 3

turns lime water cloudy

Question 4

test for chlorine

Answer 4

damp litmus paper turns white in presence of chlorine