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प्रश्न
Write the properties of this substance.
Glass
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उत्तर
- Glass is a solid state.
- Properties of Glass: Brittleness, hardness, density and transparency.
संबंधित प्रश्न
Write the properties of this substance.
Sugar
Write the properties of this substance.
Flour
What will happen if....? And why?
Nails are made of plastic.
Why does this happen?
The fragrance of incense sticks lighted in one corner of a room spreads to the other corner.
Very Short Answer Type Question:
Name two gases which are insoluble in water.
Short Answer Type Question:
Metals have lustre (shine). Give the reason why some metal articles become dull and loose their shine.
Short Answer Type Question:
Name a non-metal that has lustre.
Materials which can be drawn into wires are called ductile. Which of the following is not a ductile material?
You are provided with the following materials
- Magnifying glass
- Mirror
- Stainless steel plate
- Glass tumbler
Which of the above materials will you identify as transparent?
During summer holidays, a group of children collected a lump of salt, green grass, broken glass piece, a small thermocol box, pen, iron nail, glass marbles, hair, naphthalene ball, a piece of sugar candy (mishri) and tried to group them on the basis of properties given in table below. Help them in filling the table.
| Name of the material |
Appearance (Hard/Soft) |
Transparency (Transparent/ Translucent/ Opaque) |
Floats/ Sinks in water |
Soluble/ Insoluble in water |
