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प्रश्न
Identify the odd term.
विकल्प
Ductility
brittleness
sonority
malleability
उत्तर
brittleness
Explanation:
Brittleness is odd one out because it is a property of non-metals and rest are the properties of metals.
संबंधित प्रश्न
Explain the meaning of malleable.
You are given a hammer, a battery, a bulb, wires and a switch.
- How could you use them to distinguish between samples of metals and non-metals?
- Assess the usefulness of these tests in distinguishing between metals and non-metals.
Name one property which is characteristic of metals.
Name two non-metals which are both brittle and non-ductile.
State any five physical properties of non-metals.
Name a non-metal having lustre (shining surface).
"Is malleable and ductile". This best describes:
(a) a metal
(b) a compound
(c) a non-metal
(d) a solution
Name a metal that is most malleable
Name a metal as precious as gold
Fill in the blank:
A metal stored in kerosene oil is _______
Match the statements in Column A, with those in Column B .
| Column A | Column B | ||
| 1 | A metal used for making high quality mirrors . | a | Chlorine |
| 2 | A metal which neither malleable nor ductile. | b | Graphite |
| 3 | A non-metal,used in the sterilsation of water. | c | Iodine |
| 4 | A non-metal, whose deficiency can lead to disease like goitre. | d | Silver |
| 5 | A non -metal which can be used as dry lubricant. | e | Zinc |
Name a metal which is lighter than water :
Name a metal which is poor conductor of electricity :
Name a non-metal whose compounds help in the growth of plants.
What is an alloy?
What are metalloids: Give examples.
Name:
a non-metal with high m.p & b.p
Name:
a metal which is a bad conductor of heat and electricity
Name:
a non- metal used in alloys
`Mg +H_2SO_4 → —+ — `
Select from the following ist:
`Fe_2O_3, , NO, PbO, Mn_2O_7`
Amphoteric oxide …………
Name:
two metals which are soft
Complete the table.
| Property of metal | Use in everyday life |
| i. Ductility | |
| ii. Malleability | |
| iii. Conduction of heat | |
| iv. Conduction of electricity | |
| v. Sonority |
Gold and silver are used to make jewellery. Give reason
Name the following:
An Alloy of copper and Zinc.
Describe a simple experiment to prove that a copper wire conducts electricity, but a piece of coal does not.
State whether the statement given below is true or false. If false write the correct statement.
The chemical name of rust is iron [III] oxide.
The sound of one metal colliding with another makes a noise, this property is called as _______.
A form of non-metal which has high ductility is
