The correct variation of the following properties of group 1 elements (M) ( $\mathrm{Li}$ to Cs) is :

The correct variation of the following properties of group 1 elements (M) ( $\mathrm{Li}$ to Cs) is :
  1. $\begin{array}{|l|l|l|} \hline \begin{array}{l} \text { Hydration } \\ \text { enthalpy of } \mathrm{M}^{+} \end{array} & \begin{array}{l} \text { Ionization } \\ \text { enthalpy of } \mathrm{M} \end{array} & \begin{array}{l} \text { Melting } \\ \text { point of } \mathrm{M} \end{array} \\ \hline \text { increases } & \text { increases } & \text { increases } \\ \hline \end{array}$
  2. $\begin{array}{|l|l|l|} \hline \begin{array}{l} \text { Hydration } \\ \text { enthalpy of } \mathrm{M}^{+} \end{array} & \begin{array}{l} \text { Ionization } \\ \text { enthalpy of } \mathrm{M} \end{array} & \begin{array}{l} \text { Melting } \\ \text { point of } \mathrm{M} \end{array} \\ \hline \text { decreases } & \text { decreases } & \text { decreases } \\ \hline \end{array}$
  3. $\begin{array}{|l|l|l|} \hline \begin{array}{l} \text { Hydration } \\ \text { enthalpy of } \mathrm{M}^{+} \end{array} & \begin{array}{l} \text { Ionization } \\ \text { enthalpy of } \mathrm{M} \end{array} & \begin{array}{l} \text { Melting } \\ \text { point of } \mathrm{M} \end{array} \\ \hline \text { decreases } & \text { decreases } & \text { increases } \\ \hline \end{array}$
  4. $\begin{array}{|l|l|l|} \hline \begin{array}{l} \text { Hydration } \\ \text { enthalpy of } \mathrm{M}^{+} \end{array} & \begin{array}{l} \text { Ionization } \\ \text { enthalpy of } \mathrm{M} \end{array} & \begin{array}{l} \text { Melting } \\ \text { point of } \mathrm{M} \end{array} \\ \hline \text { increases } & \text { decreases } & \text { decreases } \\ \hline \end{array}$

Solution

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Asked in: AP EAMCET 2017 (24 Apr Shift 2)

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