List of top Chemistry Questions on Electrophilicity and Hydration of Aldehydes

Given below are two statements: 
Statement (I): In the case of formaldehyde, \( K \) is about 2280, due to small substituents, hydration is faster. 
 
Statement (II): In the case of trichloroacetaldehyde, \( K \) is about 2000 due to the -I effect of Cl. 
 
In the light of the above statements, choose the correct answer from the options given below:

In aqueous medium, cations like $ \text{H}^+ $ and $ \text{Li}^+ $ undergo hydration and exist in the hydrated form. Predict the numbers of water molecules surrounded with $ \text{H}^+ $ and $ \text{Li}^+ $ ions to form stable complex structure respectively.