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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
Write two methods of preventing the rusting of iron.
Name the metal which is used for galvanising iron.
Name any two metals which do not corrode easily.
A common metal which is highly resistant to corrosion is:
(a) iron
(b) copper
(c) aluminium
(d) magnesium
If copper is kept exposed to damp air for a considerable time, it gets a green coating on its surface. This is due to the formation of:
(a) hydrated copper sulphate
(b) copper oxide
(c) basic copper carbonate
(d) copper nitrate
Bronze is an alloy of ______.
Corrosion can be an advantage in some case.Explain ?
Stainless steel is an alloy of _______.
Observe the following diagram and write answers.
- Name the method.
- Explain the method.
- Give two examples of this method.
Alloys are homogeneous mixtures of a metal with a metal or nonmetal. Which among the following alloys contain non-metal as one of its constituents?
