Write word equations of the following: Reaction of copper sulphate solution on iron filings.
Important Questions on Chemicals and Chemical Changes
Neha visited her village during summer vacation. She was impressed by the newly constructed metallic bridge on the village river. In the next vacation, Neha observed that shiny-lustrous bridge had developed reddish-brown patches at various places. She advised the villagers to paint the bridge, failing which the reddish-brown patches would eventually weaken the structure.
What values are exhibited by Neha?
Name the metal which is used for construction of the bridge? (Zinc / Copper / Iron)
Why was the bridge turning reddish-brown? How can it be prevented?
Neha visited her village during summer vacation. She was impressed by the newly constructed metallic bridge on the village river. In the next vacation, Neha observed that shiny-lustrous bridge had developed reddish-brown patches at various places. She advised the villagers to paint the bridge, failing which the reddish-brown patches would eventually weaken the structure.
What are the two essential conditions for the above change?
