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प्रश्न
Name the metal which is a constituent of plant pigment?
उत्तर
The metal which is a constituent of plant pigment is magnesium (Mg).
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संबंधित प्रश्न
In one method of rust prevention, the iron is not coated with anything. Which is this method?
Fill in the following blank with suitable word:
The process of depositing a thin layer of zinc on iron articles is called .............
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
Explain how the activity series accounts for each of the following:
tendency to corrosion
State under what conditions corrosion is faster ?
No chemical reaction takes place when granules of a solid, A, are mixed with the powder of another solid, B. However when the mixture is heated, a reaction takes place between its components. One of the products, C, is a metal and settles down in the molten state while the other product, D, floats over it. It was observed that the reaction is highly exothermic.
(i) Based on the given information make an assumption about A and B and write a chemical equation for the chemical reaction indicating the conditions of reaction, physical state of reactants and products and thermal status of reaction.
(ii) Mention any two types of reactions under which above chemical reaction can be classified.
Give reason.
An iron article should be given a coat of paint
When one of the metals in an alloy is mercury the alloy is called _______.
Find the odd one out and give its explanation.
In ______ process a layer of molten tin is deposited on metals.
