Question

Take three small glasses A, B and C. Take Glass A and half fill it with boiled water and oil on the top, glass B should be dry and cover with a polythene with a rubber band, glass C with tap water and let it be open. Put 2 iron nails into each glass and leave it for 6-7 days. After 6-7 days record the following observations.

what is the observation and what type of reaction is it

Answer 1

Answer:

Explanation:

I this case the nails in glassB will not rust as in glass B there is no carbon dioxide,then nails.in glass will rust more than glass A but less than glass C as there is limited oxygen then nails in glass C will rust most bcoz there is excess of carbon dioxide

Answer 2

iron when exposed to oxygen it gets rust.in glass A oil that floats on water do not allow the oxygen inside so iron do not get rust.in glass B it is covered with polythene cover. polythene cover do not allow oxygen inside so iron nails in glass B also do not get rust and remain same.in glass C only tap water is present.tap water allows oxygen inside.so iron nails in glass C get rusted.