English

Give Two Examples of Alloys with Their Chemical Composition. - Science and Technology 2

Advertisements
Advertisements

Question

Give two examples of alloys with their chemical composition.

Solution

Examples:

Name of the alloy Composition
Duralumin Al + Cu + Mg + Mn
Brass Cu + Zn
shaalaa.com
  Is there an error in this question or solution?
2015-2016 (March)

RELATED QUESTIONS

What is an alloy?


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


In one method of rust prevention, the iron is not coated with anything. Which is this method?


What is the corrosion of iron known as?


What are the constituents of stainless steel?


Name an alloy of copper. State its chemical composition and any one use.


Explain why, when a copper object remains in damp air for a considerable time, a green coating is formed on its surface. What is this process known as?


A metal X which is resistant to corrosion is produced by the electrolysis of its molten oxide whereas another metal Y which is also resistant to corrosion is produced by the reduction of its oxide with carbon. Metal X can be used in powder form in thermite welding whereas metal Y is used in making cathodes of ordinary dry cells.
(a) Name the metals X and Y.
(b) Which of the two metals is more reactive : X or Y?
(c) Name one ore or metal X. Also write its chemical formula.
(d) Name one ore or metal Y. Also write its chemical formula.
(e) Name one alloy of metal X and one alloy of metal Y.


Explain how the activity series accounts for each of the following:

tendency to corrosion


Write scientific reasons.

Lemon or tamarind is used for cleaning copper vessels turned greenish.


Identify the process shown in the diagram and explain it in short


 _______ forms a green colour in the water.


When one of the metals in an alloy is mercury the alloy is called _______.


Pressure cooker : Anodizing : : Silver plated spoons : _______


Explain concept with example/explain with the help of a balanced equation.

Corrosion


Draw a neat labelled diagram.

Anodizing


Which among the following alloys contain mercury as one of its constituents?


The diagram shows the reaction between metal and dil. acid.

What is the reason for different behaviour of Mg in test tube B?


Give an example of a chemical reaction for each of the following situations:

Sound is produced


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×