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Here some molecules are given :(1) What type of hybridisations takes place in the above molecules ? (2) How many sigma bonds are formed in the above molecules ? What are they ? (3) Write the bond angles of the above molecules. (4) Which molecule has an empty orbital ? |
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Answer» (1) sp hybridisation – BeCl2 sp2 hybridisation – BF3 sp3 hybridisation – NH3 sp3 hybridisation – H2O (2) i) BeCl2 → Two sigma (σ) bonds → σp – sp and σ sp – p (ii) BF3 → Three sigma bonds → σp – sp2 and σp – sp2 and σ sp2 – p (iii)NH3 → Three sigma bonds → σs – sp3 , σs – sp3 and σ sp3 – s (iv)H2O → Two sigma bonds → σs – sp3 and σ sp3 – s (3) BeCl2 → 180° BF3 → 120° NH3 → 107°48' H2O → 104°31' (4) BF3 has an empty orbital. |
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