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                                    What is covalent bond? What type of bond exists in the following? i] C Cl_4 "" ii] CaCl_2 "" iii] CH_4 "" iv] NH_3. | 
                            
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Answer» Solution :Chemical bonds formed between two ATOMS by the sharing of ELECTRONS between the atoms of the same ELEMENT or different ELEMENTS is called covalent BOND.  i] `C CI_4` Covalent bond `"" ` ii] `CaCl_2` : ionic bond iii] `CH_4` Covalent bond `""` iv] `NH_3` Covalent bond.  | 
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