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JEE Main2016ChemistryHydrogenActual

Which of the following statements about water is FALSE?

Options

  1. AThere is extensive intramolecular hydrogen bonding in the condensed phase.
  2. BIce formed by heavy water sinks in normal water.
  3. CWater is oxidized to oxygen during photosynthesis
  4. DWater can act both as an acid and as a base

Correct answer

A. There is extensive intramolecular hydrogen bonding in the condensed phase.

Step-by-step solution

(i) Ice formed by heavy water sinks in normal water due to higher density of D 2 O than normal water. (ii) 6 CO 2 +   6 H 2 O → chlorophyll hv C 6 H 12 O 6 +6O 2 (iii) Water can show amphiprotic nature and hence water can act both as an acid a base. (iv) There is extensive intermolecular hydrogen bonding in the condensed phase instead of intramolecular H - bonding.

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