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प्रश्न
Identify the odd term.
विकल्प
Carbon
Bromine
Sulphur
Phosphorus
उत्तर
Bromine
Explanation:
Bromine is the odd one out because it is liquid non-metal, and others are solid non-metals.
संबंधित प्रश्न
Explain the meaning of malleable.
Mark ‘T’ if the statement is true and ‘F’ if it is false.
Coal can be drawn into wires. ( )
Some properties are listed in the following Table. Distinguish between metals and non-metals on the basis of these properties
| Properties | Metals | Non-metals |
| 1. Appearance | Lustrous | Dull |
| 2. Hardness | Hard | Soft |
| 3. Malleability | Can be beaten into thin sheets | Cannot be beaten into thin sheets |
| 4. Ductility | Can be drawn into wires | Cannot be drawn into wires |
| 5. Heat Conduction | Good conductors of heat | Poor conductors of heat |
| 6. Conduction of Electricity | Good conductors of electricity | Poor conductors of electricity |
Can you store lemon pickle in an aluminium utensil? Explain.
Name one metal which has a low melting point.
Which metal foil is used for packing some of the medicine tablets?
Name two non-metals which are both brittle and non-ductile.
State one use of Nitrogen.
You are given a dry cell, a torch bulb with holder, wires and crocodile clips. How would you use them to distinguish between samples of metals and non-metals?
What are metals? Name five metals.
Name a metal which is so soft that it can be cut with a knife.
Give four differences between metals and non-metals with reference to their:
- Melting point and boiling point
- The conductivity of heat and electricity
- Malleability
- Solubility
Fill in the blank
Tungsten metal is a poor conductor of _______
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 the non-metal and its natural form, which is the hardest substance.
State two important uses of following non-metal
Uses of chlorine
Define metal and non-metal on the basis of electron loss or gain.
What are metalloids: Give examples.
Name:
a metal which can float on water
What are the metals that make the alloys brass and bronze?
Match the following:
| Column A | Column B |
| (a) Helium | (1) Electric bulb |
| (b) Neon | (2) Thermometer |
| (c) Argon | (3) Semiconductor |
| (d) Germanium | (4) Weather balloons |
| (e) Mercury | (5) Advertising signboards |
Select the appropriate option for the following statement:
The element from the halogen family which is most abundant
Find the odd one out and give its explanation.
Write the name.
Nonmetal which is a good conductors of electricity.
Identify who I am!
Amphoteric oxide forming metal- _______
Paheli bought a statue made up of copper. To her surprise, it acquired a dull green coating after a couple of months. Explain the reason.
The metal is stored in kerosene ______.
Reason out
Sulphur is used in the vulcanization of rubber.
