Class Notes NCERT Solutions for CBSE Students
NCERT 8th Class (CBSE) Science: Metals and Non-Metals – Quiz
31 Multiple Choice Questions related to NCERT 8th Class (CBSE) Science: Metals and Non-Metals – Quiz:
- Elements can be classified into metals and non-metals depending on their physical and chemical properties.
- The ore of a metal consists of rocks containing minerals of the metal in sufficient quantities, so that it is profitable to mine it and extract the metal from it.
- Metals are generally solid at room temperature, have a metallic luster, generally hard and strong with high specific gravities, melting and boiling points. They are malleable and ductile, good conductors of heat and electricity and are sonorous.
- Non-metals are solid, liquid or in gaseous form at room temperature, are not lustrous, are comparatively soft and have low density. They are generally brittle when solid, are bad conductors of heat and electricity, have low melting and boiling points and are not sonorous.
Quiz: Metals and Non-Metals
Elements can be classified into the following two groups depending on their physical and chemical properties- Metals such as iron, copper, tin, silver and in gold. In general, metals are hard and shiny in appearance. Non-metals such as sulphur and phosphorus. In general, they are not so hard and dull in appearance. There are also certain elements, such as arsenic, antimony and germanium, which have some properties of metals and some properties of non-metals. They are known as metalloids. From the electronic viewpoint, metals are defined as elements which form positive ions by losing electrons.
- Question 1 of 31
1.
Which of the following can be beaten into thin sheets?
Correct
Wrong! Correct Answer is Zinc
- Question 2 of 31
2.
Which of the following statements is correct?
Correct
Wrong! Correct Answer is Generally, metals are ductile
- Question 3 of 31
3.
Which of the following metals can be used for making wires?
Correct
Wrong! Correct Answer is All of the above
- Question 4 of 31
4.
Which of the following metals does not react even concentrated hydrochloric acid?
Correct
Wrong! Correct Answer is Copper
- Question 5 of 31
5.
Which of the following metals reacts vigorously with water?
Correct
wrong! Correct Answer is Sodium
- Question 6 of 31
6.
Which metal is generally used for making a sewing needle?
Correct
Wrong! Correct Answer is Iron
- Question 7 of 31
7.
Which metal is used for making the filament of a bulb?
Correct
Wrong! Correct Answer is Tungsten
- Question 8 of 31
8.
Which metal is used in thermometer?
Correct
Wrong! Correct Answer is Mercury
- Question 9 of 31
9.
Which of the following is an example of non-metals with lustre?
Correct
Wrong! Correct Answer is Graphite
- Question 10 of 31
10.
Which of the following metals is the most reactive metal?
Correct
Wrong! Correct Answer is Sodium
- Question 11 of 31
11.
Which of the following metals is the least reactive metal?
Correct
Wrong! Correct Answer is Gold
- Question 12 of 31
12.
Which of the following is true for all metals?
Correct
Wrong! Correct Answer is They have 1-3 valence electrons
- Question 13 of 31
13.
Gold normally occurs in nature
Correct
Wrong! Correct Answer is In free state
- Question 14 of 31
14.
Which of these is the most reactive metal?
Correct
Wrong! Correct Answer is Sodium
- Question 15 of 31
15.
Which of these metals cannot displace hydrogen from a dilute acid?
Correct
Wrong! Correct Answer is Silver
- Question 16 of 31
16.
Which one of the following alloys is light and strong?
Correct
Wrong! Correct Answer is Duralium
- Question 17 of 31
17.
Which of these metals can displace all the other three metals from their salt solutions?
Correct
Wrong! Correct Answer is Zinc
- Question 18 of 31
18.
Metal A dipped in a salt of metal B displaces B from the solution. This shows that
Correct
Wrong! Correct Answer is A is more reactive than B
- Question 19 of 31
19.
Metals react with oxygen to form
Correct
Wrong! Correct Answer is Basic oxides
- Question 20 of 31
20.
The metal most used in the construction industry is
Correct
Wrong! Correct Answer is Iron
- Question 21 of 31
21.
Pieces of copper, silver and gold are dropped into a solution of iron sulphate. The piece that will get a coating of copper is
Correct
Wrong! Correct Answer is None of them
- Question 22 of 31
22.
The most reactive metal is:
Correct
Wrong! Correct Answer is Potassium
- Question 23 of 31
23.
The metal which is liquid at room temperature:
Correct
Wrong! Correct Answer is Mercury
- Question 24 of 31
24.
The non-metal which is liquid at room temperature is:
Correct
Wrong! Correct Answer is Bromine
- Question 25 of 31
25.
The metal which reacts with water only when it is red hot and steam is passed over it is:
Correct
Wrong! Correct Answer is Iron
- Question 26 of 31
26.
The metal which is stored in kerosene:
Correct
Wrong! Correct Answer is Sodium
- Question 27 of 31
27.
Metal which is used to make jewellery:
Correct
Wrong! Correct Answer is Both Silver and Gold
- Question 28 of 31
28.
The metal which is not corroded by air, water and acids is:
Correct
Wrong! Correct Answer is Gold
- Question 29 of 31
29.
Metals are:
Correct
Wrong! Correct Answer is Generally hard and solid
- Question 30 of 31
30.
Non-metals are:
Correct
Wrong! Correct Answer is Found in all states
- Question 31 of 31
31.
Materials having qualities of both metals and non-metals are:
Correct
Wrong! Correct Answer is Metalloids
