Physical Properties of Metals

Q.

Name any 10 metals and any 10 nonmetals.

Q.

State any five physical properties of metals and five physical properties of non-metals.

Q. Describe the physical properties of a metal

Q.

Give 5 uses and properties of Terylene

Q.

What are the coinage metals?

Q.

The property of metal by which it can be drawn into wires is called_______.

1. Conductivity

2. Malleability

3. Ductility

4. Resistivity

Q. Match the following and choose the correct option.

$\begin{array}{cc}\text{Column-I}& \text{Column -II}\\ \text{1. Ag}& \text{(i) Soft}\\ \text{2. Br}& \text{(ii) Forms amphoteric oxide}\\ \text{3. Na}& \text{(iii) Best conductor}\\ \text{4. Zn}& \text{(iv) Liquid at room temperature}\end{array}$

1. 
   1(iv), 2(iii), 3(ii), 4(i)
2. 
   1(iv), 2(ii), 3(i), 4(iii)
3. 
   1(ii), 2(iv), 3(i), 4(iii)
4. 
   1(iii), 2(iv), 3(i), 4(ii)

Q.

Ionic compounds are soluble in water. Explain.

Q.

Question 12 (a)

Give reason why platinum, gold and silver are used to make jewellery?

Q.

Give some uses of good and bad conductors.

Q.

Why are electric wires are coated with PVC or a rubber-like material?

Q.

Which one of the following properties is not generally exhibited by ionic compounds?

1. Solubility in water

2. High melting and boiling points

3. Electrical conductivity in solid-state

4. Electrical conductivity in a molten state

Q.

What are examples of the most malleable and ductile metals?

Q.

What are the five properties of metals?

Q.

How does ionization energy vary across a period and down the group?

Q. Give reason:
Sodium chloride is not a conductor of electricity in solid state whereas it does conduct electricity in aqueous solutionsolution as well as in molten state.

Q. Magnesium is more reactive than copper or iron but iron is more reactive than copper. Which of the following pots will get damaged and why? (i) A solution of magnesium sulphate is kept in copper pot. (ii) A solution of copper sulphate is kept in iron pot. (iii) A solution of magnesium sulphate is kept in iron pot.

Q.

Why are metals used to make cooking utensils?

Q.

Gold is a non metal.

1. True
2. False

Q.

Is diamond a metal or a non metal?

Q.

The thermal conductivity of solid metals increases with a rise in temperature. Comment

Q.

Write any two properties of metals?

Q.

Silver is a good conductor of electricity yet electricity wires are not made up of silver. Why?

Q.

What are the physical properties of an ionic compounds? [5 MARKS]

Q.

Which of the following metal has a low density?

1. Potassium

2. Aluminium

3. Copper

4. Iron

Q.

What is Crystallisation and Crystalline Salt?

Q.

In solid state NaCl does not conduct electricity but in molten state and in aqueous solution it conducts electricity. Give separate reasons for each observation.

Q.

Which of these liquefied metal expanding on solidification_________.

1. Zinc

2. Gallium

3. Chlorine

4. Aluminum

Q.

The ability of metals by which they can be beaten into thin sheets is called _______.

1. Ductility

2. Malleability

3. Sonority

4. Conductivity

Q.

Metals like iron, aluminium, cobalt and nickel become passive when treated with pure concentrated nitric acid.

1. True

2. False