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प्रश्न
What is the difference between ionic compounds and polar covalent compounds?
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उत्तर
Ionic compound:
- They usually have high melting points and boiling points.
- They are soluble in water. (NaCl)
- They often conduct electricity in a molten state.
- They are usually crystalline solids.
Polar covalent compound:
- Atoms do not have an equal distribution of shared electron pairs.
- They ionise in water.
- They are not electrically neutral.
- Bond is formed between dissimilar atoms such as H2O, NH3, HCl.
संबंधित प्रश्न
What do you call the compounds having the same molecular formula but different structural arrangements of atoms?
One of the following compounds is not ionic in nature. This compound is:
(a) Lithium chloride
(b) Ammonium chloride
(c) Calcium chloride
(d) Carbon tetrachloride
What are the conditions necessary for the formation of covalent molecules?
Give two example in following case:
Gaseous non polar compounds
The carbon compound is used in daily life is ______.
Electrons are getting added to an element Y:
Is Y getting oxidised or reduced?
Acids dissolve in water and produce positively charged ions. Draw the structure of these positive ions.
What are the term defined below?
A bond formed by share pair of electrons, each bonding atom contributing one electron to the pair.
Taking MgCl2 as an electrovalent compound, CCl4 as a covalent compound, give four difference between electrovalent and covalent compounds
The table shows the electronic structures of four elements.
| Element | Electronic Structure |
| P | 2, 6 |
| Q | 2, 8, 1 |
| R | 2, 8, 7 |
| S | 2, 8, 8 |
- Identify which element(s) will form covalent bonds with carbon.
- “Carbon reacts with an element in the above table to form several compounds.” Give suitable reason.
