The ionisation enthalpy values of alkali...

The ionisation enthalpy values of alkali metals indicate that lithium should be poorest reducing agent because of its high ionization energy. However, it is the strongest reducing agent among alkali metals. This may be explained because of:

A

low sublimation energy of lithium

B

reducing power of an element is reverse to its ionisation potential.

C

high heat of hydration of lithium

D

high lattice energy of lithium compounds

Text Solution

Verified by Experts

The correct Answer is:

C

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Knowledge Check

Lithium is the strongest reducing agent among the all metals due to which of the following factor.

A

Ionisation enthalpy

B

Electron affinity

C

Hydration enthalpy

D

Lattice enthalpy.

Alkali metals are powerful reducing agents because:

A

these are metals

B

their ionic radii are large

C

these are monovalent

D

their ionisation potentials are low

Among the alkali metals cesium is the most reactive because

A

its incomplete shell is nearest to the nucleus

B

it has a single electron in the valence shell

C

it is the heaviest alkali metal

D

the outermost electron is more loosely bound than the outermost electron of the other alkali metals.

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