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प्रश्न
What is an alloy?
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उत्तर
An alloy is a homogeneous mixture of two or more metals or of one or more metals with certain non-metallic elements.
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संबंधित प्रश्न
Which metals do not corrode easily?
Choose the correct answer from the options given below:
Heating an ore in a limited supply of air or in the absence of air at a temperature just below its melting point is known as
A. Smelting
B. Ore-dressing
C. Calcination
D. Bessemerisation
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In stainless steel alloy, iron metal is mixed with:
(a) Cu and Cr
(b) Cr and Ni
(c) Cr and Sn
(d) Cu and Ni
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.
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(ii) Mention any two types of reactions under which above chemical reaction can be classified.
Observe the following picture a write down the chemical reaction with the explanation.
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An iron article should be given a coat of paint
Give reason.
A wooden article should be polished.
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Pressure cooker : Anodizing : : Silver plated spoons : _______
Explain concept with example/explain with the help of a balanced equation.
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The diagram shows the reaction between metal and dil. acid.
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