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Posted on: 10:45:29 AM on April 29, 2017
Posted By:
nehal
which of the following has gaint covalent structure? nacl sio2 alcl3 pbo2 why?how?


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Posted on: 01:25:12 PM on April 30, 2017



Posted on: 10:53:43 PM on May 1, 2017
How tell the reason



Posted on: 04:33:06 PM on May 2, 2017
because due to having a valency of four it can make up a very big molecule by joining primary units



Posted on: 06:32:39 PM on May 6, 2017
sio2..because it is covalent compound with strong covalent bond...very high melting and boiling point..it is hard and insoluble in water..due to these properties it is a giant covalent compound...



Posted on: 05:01:43 PM on April 23, 2019
What about pbo2? Lead also has 4 valence electrons, it forms 2 bonds with oxygen like Si does,....so?





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