Bonding, atoms and groups mini test

1. 1how does a van der waals force arise?

   1. Ainstantaneous dipoles are formed between slightly negative and slightly positive molecules,
      induces dipoles in neighbouring molecules.
   2. Ba permanent dipole induces a dipole in neighbouring molecules
2. 2Define covalent bond

   1. Aa shared pair of electrons between a non-metal and a non-metal
   2. Ba shared pair of electrons between a non-metal and a metal
3. 3what is the bonding angle of a pyramidal molecule?

   1. A109.5
   2. B107
4. 4which one is correct in terms of repulsion

   1. Alone pair of electrons > bonded pair of electrons
   2. Blone pair of electrons

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A-Levels Chemistry Quiz sobre Bonding, atoms and groups mini test, criado por jodieamelia em 13-05-2013.

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