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प्रश्न
State whether true or false. If false, correct the statement.
Oil and water are immiscible with each other.
विकल्प
True
False
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उत्तर
Oil and water are immiscible with each other- True
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संबंधित प्रश्न
State two characteristics of matter demonstrated by Brownian motion.
When extremely small particles X derived from the anther of a flower were suspended in a liquid Y and observed through a microscope, it was found that the particles X were moving throughout the liquid Y in a very zig-zag way. It was also observed that warmer the liquid Y, faster the particles X moved on its surface.
- What could particles X be ?
- What do you think liquid Y is ?
- What is the zig-zag movement of X known as ?
- What is causing the zig-zag movement of particles X ?
- Name the scientist who discovered this phenomenon.
- What does this experiment tell us about the nature of liquid Y?
Which of the following are compounds ?
- CO
- No
- NO
- Co
What is the concentration of a solution which contains 16 g of urea in 120 g of solution ?
State whether the following statement is true or false :
Sponge is an example of solid sol.
The solubility of ammonium chloride in water at various temperatures is given below :
| Temperature | : | 10°C | 20°C | 40°C | 60°C | 80°C |
| Solubility | : | 24 g | 37 g | 41 g | 55 g | 66 g |
What mass of ammonium chloride would be needed to make a saturated solution of ammonium chloride in fifty grams of water at 40°C ?
Which technique is used in a washing machine to squeeze out water from wet clothes while drying ?
What is fractional distillation ? What is the use of fractionating column in fractional distillation ?
Explain the meaning of the term ‘matter’.
Solids do not flow.
