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प्रश्न
The electronic configurations of three elements X, Y and Z are as follows:
| X | 2, 4 |
| Y | 2, 7 |
| Z | 2, 1 |
(a) Which two elements will combine to form an ionic compound?
(b) Which two elements will react to form a covalent compound?
Give reasons for your choice.
उत्तर
(a) Elements Y and Z combine to form an ionic compound by transfer of one electron from Z to Y.
(b) Elements X and Y will react to form a covalent compound because atom X can react with 4 atoms of Y to share their one electron.
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संबंधित प्रश्न
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(b) Q and S
(c) P and S
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Out of KCl, HCl, CCl4 and NaCl, the compounds which are not ionic are:
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Potassium (Atomic No. 19) and chlorine (Atomic No. 17) react to form a compound. On the basis of electronic concept, explain
(i) oxidation
(ii) reduction
(iii)oxidising agent
(iv)reducing agent
Explain the following:
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Which of the following statements are correct for carbon compounds?
- Most carbon compounds are good conductors of electricity.
- Most carbon compounds are poor conductors of electricity.
- Force of attraction between molecules of carbon compounds is not very strong.
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______ is an example of a covalent compound having a high melting point.
