p -Block elements - ll — Chemistry STD 12 Science — Question

Assertion $A$ : $\left[ CoCl \left( NH _3\right)_5\right]^{2+}$ absorbs at lower wavelength of light with respect to $\left[ Co \left( NH _3\right)_5\left( H _2 O \right)\right]^{3+}$

Reason $R$ : It is because the wavelength of the light absorbed depends on the oxidation state of the metal ion.

In the light of the above statements, choose the correct answer from the options given below :

Statement $I:$ For $KI$, molar conductivity increases steeply with dilution.

Statement $II:$ For carbonic acid, molar conductivity increases slowly with dilution. In the light of the above statements, choose the correct answer from the options given below:

(outermost) : [Atomic number of $\mathrm{Eu}=63$ ]

$X\xrightarrow[{\left( 2 \right)\,{H_2}O}]{{\left( 1 \right)\,LiAl{H_4}}}P$

$Y\xrightarrow[{\left( 2 \right)\,{H_2}O}]{{\left( 1 \right)\,LiAl{H_4}}}Q$

Incorrect statement for $X, Y, P$ and $Q$ is