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प्रश्न
Matter is made up of ______.
उत्तर
Matter is made up of atoms.
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संबंधित प्रश्न
What are the conditions for 'something' to be called 'matter'?
State whether colloidal solutions are homogeneous or heterogeneous.
Which of the following do not exhibit Tyndall effect ?
Starch solution, Sugar solution, Ink, Salt solution, Copper sulphate solution, Ammonium chloride solution, Fog, Smoke, Car exhausts.
What is a colloid ? Give two examples of colloids (or colloidal solutions)
100 mL of water at room temperature of 25°C is taken in a beaker and a little of solid S is dissolved in it by stirring to obtain a solution X. More and more of solid S is added to the solution with constant stirring, while keeping the temperature of solution constant at 30°C. After some time it is observed that no more solid dissolves in water and at the same time some solid is also left undissolved at the bottom of the beaker.
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- What name is given to solutions like X ?
- What name is given to solutions like Y ?
- What will you observe if the solution Y at 30°C is cooled down to 10°C by keeping the beaker in crushed ice ? Why ?
- What term is used to denote the amount of solid dissolved in 100 grams of water in a solution lie Y ?
Why wires cannot be drawn from materials such as stone or wood?
Give some examples of the Tyndall effect observed in your surroundings?
Gases do not diffuse very easily.
Write a scientific reason.
Lemon sherbat has a sweet, sour and salty taste and it can be poured in a glass.
Write a scientific reason.
Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass.
