JEE Main 2016 (Offline) | Hydrogen Question 71 | Chemistry

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JEE Main 2016 (Offline)

MCQ (Single Correct Answer)

-1

Which one of the following statements about water is FALSE?

Water is oxidized to oxygen during photosynthesis

Water can act both as an acid and as a base.

There is extensive intramolecular hydrogen bonding in the condensed phase.

Ice formed by heavy water sinks in normal water

JEE Main 2015 (Offline)

MCQ (Single Correct Answer)

-1

The molecular formula of a commercial resin used for exchanging ions in water softening is C₈H₇SO₃Na (Mol. Wt. 206). What would be the maximum uptake of Ca²⁺ ions by the resin when expressed in mole per gram resin?

2/309

1/412

1/103

1/206

JEE Main 2015 (Offline)

MCQ (Single Correct Answer)

-1

From the following statements regarding H₂O₂, choose the incorrect statement:

It decomposes on exposure to light

It has to be stored in plastic or wax lined glass bottles in dark

It has to be kept away from dust

It can act only as an oxidizing agent

AIEEE 2012

MCQ (Single Correct Answer)

-1

Very pure hydrogen (99.9%) can be made by which of the following processes ?

Reaction of methane with steam

Mixing natural hydrocarbons of high molecular weight

Electrolysis of water

Reaction of salt like hydrides with water

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