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प्रश्न
Fill in the blank
Chalk powder dissolved in water is an example of a Chalk powder dissolved in water is an example of a _________.
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उत्तर
Chalk powder dissolved in water is an example of a Chalk powder dissolved in water is an example of a suspension.
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संबंधित प्रश्न
Give one example for the following type of mixtures
solid-solid homogenous mixture.
Give one example for the following types of mixtures:
liquid-gas homogenous mixture
Write the Chemical Name of the Following and Also Give Their Molecular Formulae:
Vinegar
Give two examples of Metalloids.
Give reason: A frying pan is made up of steel but its handle is made up of wood.
Indicate whether the following statement is true or false:
Noble gases are high reactive
Tick (√) the correct alternative from the choice given for the following statement.
Brass and bronze are
The important physical properties of substances are colour, odour, nature, density & solubility in water.
Name - a poisonous gas almost as heavy as air.
Give the name of the radical - OH
Give the name of the radical - CO3
Complete the statement given below by filling in the blank with the correct word.
An element is a pure substance which cannot be broken down by physical or _________ methods.
Select the correct answer from the choice given below.
The element which is malleable
Explain the difference between Atoms and molecules.
Select the correct answer from A, B, C, D & E for the statement given below :
A non-metal that is lustrous.
Select the correct answer from A, B, C, D & E for the statement given below :
A noble gas.
The diagram represents fractional distillation for the separation of mixtures. Answer the following :
- Can two immiscible liquids be separated by this process?
- Separation of liquids by this process is based on which physical property?
- If methyl alcohol & water are to be separated, which liquid would remain in flask ‘X’ after condensation.
- Give a reason for the above answer.
- State the purpose of the fractionating column in the apparatus.
Oxygen is very essential for us to live. It forms 21% of air by volume. Is it an element or compound?
Name the process associated with the following
A fine beam of light entering through a small hole in a dark room illuminates the particles in its paths.
Give an example of each mixture having the following characteristics. Suggest a suitable method to separate the components of this mixture
Two or more coloured constituents are soluble in some solvent.
Name the element which is used for making computer chips.
