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Water molecule is very polar. Polar end ...

Water molecule is very polar. Polar end of molecule attracts opposite charges on another water molecule (acts like magnet). How will you explain this property of water with reference to upward movement of water ? Comment on the upward movement of water given the inter molecular hydrogen bonding in water.

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The polar surface of water molecules shows the property of contact (adhesive) force of water (of contact surface) more over the cohesive force (attractive force). Due to cohesive and adhesive property of water waterrises.
In which
(i) upper pulling force - resists pulling force. e.g. gravitational force
(ii) higher capillarity - to rise in narrow tube. e.g. Tracheids and vessel elements
Due to inter molecular hydrogen bond in water, the molecules of water possess more attractive force in liquid form (compared to gases). Thus with reference to surface tension, water can rise upward in xylem.
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