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प्रश्न
Give a reason why rust turns moist red litmus blue.
उत्तर
A suspension of rust is basic in nature and hence turn moist red litmus blue.
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संबंधित प्रश्न
The chemical reaction involved in the corrosion of iron metal is that of:
(a) oxidation as well as displacement
(b) reduction as well as combination
(c) oxidation as well as combination
(d) reduction as well as displacement
Explain why, the galvanised iron article is protected against rusting even if the zinc layer is broken.
Explain with reason:
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Find the odd man out:
Answer the following question:
What is corrosion? Do gold ornaments corrode? Justify.
Write three methods of preventing rusting of iron.
Give reason.
Copper and brass utensils should be tinned.
When one of the metals in an alloy is mercury the alloy is called _______.
Pressure cooker : Anodizing : : Silver plated spoons : _______
The diagram shows the reaction between metal and dil. acid.
What is the reason for different behaviour of Mg in test tube B?
