Chemistry · General Awareness

Chemistry of Metals and Alloys

1,851 Questions

Review the physical and chemical properties of various metals and their common alloys. This collection covers industrial applications, metallurgical processes, and practical uses of elements like silicon and boron. Practice these questions to strengthen your chemistry fundamentals for exams.

Properties of metalsCommon alloysIndustrial metallurgyChemical applications

Chemistry of Metals and Alloys Questions

Multiple choice chemistry metals physical properties of metals and non-metals some physical properties of metals general characteristics and uses of metals

Out of sulphur and gold, which will be have higher melting point?

  1. Sulphur

  2. Gold

  3. Both have equal melting point

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Gold is a transition metal with a melting point of approximately 1064 C. Sulphur is a non-metal with a much lower melting point of approximately 115 C.

Multiple choice chemistry metals physical properties of metals and non-metals some physical properties of metals general characteristics and uses of metals

Mark the incorrect statement(s).
a) Most of the metals are soft.
b) All metals are equally hard.
c) Sodium is a soft non-metal.

  1. a, b

  2. b, c

  3. a, c

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Most of the metals are hard. But all the metals are not equally hard. The hardness varies from metal to metal. Most of the metals like iron, copper etc. are very hard. Sodium, potassium are exceptions.

Multiple choice chemistry metals physical properties of metals and non-metals some physical properties of metals general characteristics and uses of metals

Soft metals which can be cut with a knife is/are :

  1. lithium

  2. potassium

  3. gold

  4. both A and B
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Metals like lithium, sodium and potassium can be cut with a knife because their melting point is low as compared to other alkali metals. 


Although alkaline earth metals with the exception of magnesium and beryllium can be also cut with a knife.

Hence the correct option is D.

Multiple choice chemistry metals physical properties of metals and non-metals some physical properties of metals general characteristics and uses of metals

Metals are generally hard. Which of the following metals is an exception and can be cut with a knife?

  1. Iron

  2. Sodium

  3. Gold

  4. Magnesium
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Metals, in general, are hard as solids at room temperature but sodium is a metal that is exceptional. 


Sodium is stored in kerosene and is soft that it can be cut with a knife.

Hence the correct option is B.

Multiple choice chemistry metals physical properties of metals and non-metals some physical properties of metals general characteristics and uses of metals

A metal M which is one of the best conductor of heat and electricity used in making electric wires is found in the nature as sulphide ore, $M _2S$. Name the metal M.

  1. Cu

  2. Al

  3. Fe

  4. Ag
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Metal 'M' is copper which is one of the best conductor of heat and electricity used in making electric wires is found in nature as sulphide ore $(Cu _2S).$

Hence option A is correct answer.

Multiple choice chemistry metals physical properties of metals and non-metals some physical properties of metals general characteristics and uses of metals

Which among the following elements is not lustrous?

  1. Cooper

  2. Gold

  3. Iron

  4. Iodine

  5. None of these
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Copper, gold, and iron are all metals with characteristic luster. Iodine is a non-metal that appears as shiny purple-black crystals but is not considered truly lustrous like metals. 'None of these' is correct because all the listed elements have some degree of luster, making the question poorly framed.

Multiple choice chemistry metals physical properties of metals and non-metals some physical properties of metals general characteristics and uses of metals

Metals tends to form:

  1. cations

  2. anions

  3. cations and anions

  4. do not form ions
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Metals have low ionization enthalpy value and as a result of which they have a high tendency to donate the electrons and achieve inert configuration,

Because of their high electron-donating tendency, they are the strong reducing agent

$M \rightarrow M^{n+} + ne^-$

After the donation of electrons, metal gets a positive charge and the species having a positive charge are known as cations.

Hence, Metals tends to form cations.

Hence, te correct option is $\text{A}$

Multiple choice chemistry metals physical properties of metals and non-metals some physical properties of metals general characteristics and uses of metals

Which of the following example possess lustre?

  1. Silver

  2. Platinum

  3. Mercury

  4. All of above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

$A,\ B$ and $C$ are all metals with free electrons. Photons of light do not penetrate very far into the surface of a metal and are typically reflected or bounced off the metallic surface by the mobile electrons and what you get is a metallic reflection, which is lustrous.