The document presents a set of questions related to soil morphology and chemical properties, specifically addressing the leaching behavior of aluminum versus silicon ions and the classification of orthoclase as a primary mineral. Each question has two options: true or false. The content focuses on evaluating the understanding of soil-related concepts.

1. Question 4
(I)The study of soil morphology includes the study of soil chemical properties
(a) True
(b) False
(ii) aluminium ions are more likely to go leached than silicone ions
(a) True
(b) False
(iii) orthoclase is a feldspar which may be classified as a primary mineral
(a) True
(b) False