Alloys and their properties - class-XII
Description: alloys and their properties | |
Number of Questions: 54 | |
Created by: Gauri Chanda | |
Tags: chemical bonding and structure states of matter chemistry elements and compounds |
Ornamental gold is an alloy of gold and silver.
Which of the following pair of elements form alloy?
The mixture of two or more metals is called a/an _______ .
The alloy steel used for making automobile parts and utensils is called
An alloy which does not contain copper is:
Select the correct alternative for the preparation of steel:
Element present in the stainless steel is ______________.
Mark the incorrect statement.
a) Alloys with required properties can be made.
b) Alloys have properties different from constituent metals.
c) Alloys can never have carbon in it.
d) Alloy is a heterogenous mixture.
Which of the following alloy contains mercury?
Identify the alloy which does not contain zinc metal.
Solder is an alloy of ____________.
Zinc metal is used in galvanization.
Find the odd one out.
Metal present in gun metal are:
Steel is heated to the very high temperature and then plunged into cold water. This process is called _______.
An alloy is :
Identify the alloy containing a non- metal as a constituent in it.
Spiegeleisen is an alloy of :
An alloy of copper, silver and gold is found to have copper constituting the ccp lattice. If silver atoms occupy the edge wares and gold is resent at a body centre. the alloy has a formula?
Bell metal is an alloy of :
Which of the following is an alloy?
Bell-metal is an alloy of
Which of the following pairs of elements cannot form an alloy?
Raney Nickel is finely divided nickel obtained by digesting alloys of $Ni/Al $ over $NaOH$.
Consider the following statements:
(a) Mass is not affected by temperature and pressure.
(b) Plasma contains ionised gases.
(c) Alloys are homogenous mixtures.
(d) Solution is a heterogeneous mixture.
Which of the above statements are correct?
An alloy is a material composed of two or more metals or a metal and a nonmetal.
The primary metal in an alloy is called:
Statement 1 : A mixture of pure metals is called an alloy. The melting point of an alloy will be lower than either of the component metal.
Statement 2 : The new bonds are weaker.
Tinned iron sheets are used for making boxes for fruits, oils, vegetables etc.
Tin is used for making fusible alloys.
The main component of bronze is:
$SiO _2$ (Silica) occurs in the form of:
_________ cannot be readily separated by physical means.
Alloys are the examples of mixtures of:
The alloy bronze contains copper and tin. This is a:
Type metal is a well-known alloy made out of the three metals:
Metallic bonding describes an array of positively charged metal cations surrounded by a sea of electrons that makes up a class of substances known as which of the following?
An alloy is a specific type of substance that can best be described by which of the following?
Statement 1: A mixture of pure metals is called an alloy. The melting point of an alloy will be lower than either of the component metals
Statement 2: The new bonds are weaker.
Surface chemists design alloys for specific functions in everyday life.
Which of the following does not demonstrate a benefit of using an alloy?
Which substance would have the lowest melting point?
Which of the following choices provides the BEST explanation for the fact that bronze, an alloy of copper and tin, is a good conductor of electricity?
An alloy of any metal with mercury is called amalgam and the electrical conductivity of an alloy is more than that of pure metals.
Steel, composed of carbon and iron, is an example of an interstitial alloy.
Which of the following choices represents the best explanation for the fact that steel is harder and stronger than pure iron?
When items of jewellery made of base metals like copper, iron or nickel are placed in a solution containing a compound of gold, a film of gold is deposited by:
Which of the following shows both the properties of both metals and non-metals?
Monel metal is a metallic alloy of copper and nickel with $5$% iron. It is used in making:
Which of the following is not an alloy containing tin metal?
Which of the following is a steel that is resistant to acids?
In metallurgy of iron, limestone provides flux for removing impurities as slag.