JEE Main 2016 Chemistry question

Not in JEE Main or NEET syllabus

Which of the following statements about water is FALSE?

(1)There is extensive intramolecular hydrogen bonding in the condensed phase.Correct
(2)Ice formed by heavy water sinks in normal water.
(3)Water is oxidized to oxygen during photosynthesis
(4)Water can act both as an acid and as a base

Answer: (1)

Solution

Statement (1) is false because the hydrogen bonding in water is **inter**molecular, not intramolecular — each molecule's hydrogens bond to the oxygen of *neighbouring* molecules, building the extended tetrahedral network responsible for water's high boiling point and the open structure of ice. A single

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Question ID VK-115441