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                              Q:
                           
                           
                                                      | A) good heat conductivity | B) high melting point | 
| C) good heat conductivity | D) low melting point | 
                              Answer:   D) low melting point
                              
                                                            
                              
Explanation:
                               
                           
                           Explanation:
The substances in which two or more atoms are attached together are called as molecular substances.
Properties of molecular substances ::
1. Molecular substances are bonded with covalent bonds
2. Bad heat conductivity
3. Bad electrical conductivity
4. Have low melting points.
 
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