The correct answer is option 4: Statement I is false but statement II is true.

The first statement states that typical laterite soils in India are generally fertile. However, this statement is incorrect. Laterite soils are typically characterized by their poor fertility and low nutrient content. They are often found in areas with high rainfall where the intense weathering process has resulted in the leaching of nutrients and minerals from the soil. This leaching process is highlighted in the second statement, which states that laterite soils generally experience leaching. Leaching refers to the movement of water-soluble nutrients downwards through the soil profile, often resulting in the loss of essential nutrients for plant growth. Therefore, statement II is true as laterite soils do experience leaching.

In summary, while statement II is true, statement I is false because typical laterite soils in India are not generally fertile but rather nutrient-poor due to leaching.