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प्रश्न
Give a reason why rust turns moist red litmus blue.
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उत्तर
A suspension of rust is basic in nature and hence turn moist red litmus blue.
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संबंधित प्रश्न
What is an alloy?
Name two metals which resist corrosion due to the formation of a thin, hard and impervious layer of oxide on their surface.
Name five methods of preventing rusting of iron.
Observe the following picture a write down the chemical reaction with the explanation.
Give reason.
Copper and brass utensils should be tinned.
State whether the statement given below is true or false. If false write the correct statement.
Either oxygen or moisture is essential for rusting.
_______ forms a green colour in the water.
State two conditions necessary for rusting of iron.
Amalgam is an alloy of ____________.
Explain the following:
Bubbles are produced when acetic acid is added to a solution of sodium hydrogencarbonate.
