Which is true statement about D(2)O and ...

Which is true statement about `D_(2)O` and `H_(2)O` ?

`D_(2)O` has lower dielectric constant than `H_(2)O`

`NaCl` is more soluble in `D_(2)O` than in `H_(2)O`

Both are correct

None of these

Text Solution

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The correct Answer is:

`H_(2)O` has higher dielectric constant than `D_(2)O` .
`H_(2)O` Dielectric constant `=(81)`
`D_(2)o` Dielectric constant `=(60)`
Dielectric constant `prop` good solvent.

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Which is true statement about H_(2)O :

hardness can be removed by passing through ion exchange resin

its presence can be detected by anhydrous `CuSO_(4)`

it is amphoprotic

all are correct.

Which of the following statements about H_(2)O_(2) is not true ?

`H_(2)O_(2)` is used to clean oil paintings

`H_(2)O_(2)` acts as oxidising as well reducing agent

Two hydroxyl groups in `H_(2)O_(2)` lie in the same plane

It retains same structure in liquid and solid form

Which statement is wrong about H_2O ?

It has high specific heat relative to other liquids or solids due to strong intermolecular H-bonding

`H_2O` molecule has capaity to form ` 4H`-bonds

`H_2O` has open cage like structure due to intermolecular H-bonding which give rise to low density to ice than liquid `H_2O`

`H_2O` has maximum density at `4^@ C` since upto `4^@C` the intermolecular H-bonding persists more and thereby decreasing volume and increasing density .