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प्रश्न
Give a reason for the following statement :
Brass & bronze are examples of mixtures, while copper sulphate & lead nitrate are examples of compounds.
उत्तर
Brass and bronze are mixtures as the composition of elements are not fixed by mass and has no formula.
Lead nitrate and copper sulphate are compounds as they have a fixed ratio of elements by mass and have a formula like Pb[NO3]2 and CuSO4.
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संबंधित प्रश्न
What are the different types of mixtures ?
Correct the following statement:
CO and Co both represents cobalt.
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
Match the Columns:
| Column A | Column B | ||
| (a) | Metals | (i) | Non-Reactive |
| (b) | Molecules | (ii) | Brittle |
| (c) | Non-Metals | (iii) | Lustrous |
| (d) | Noble Gases | (iv) | Smallest unit of Compound |
Select the correct answer from the choice given below.
The element which is malleable
Explain the difference between Metals and non-metals.
‘An atom is the basic unit of an element’. Draw a diagram of an atom – divisible as seen today.
Select the correct answer from A, B, C, D & E for the statement given below :
A metalloid.
Give an account of elements known to us.
