CBSE-CLASS-XII SERIES Biology
Soils
1 previous year questions.
Volume: 1 Ques
Yield: Medium
High-Yield Trend
1
2025 Chapter Questions 1 MCQs
01
PYQ 2025
medium
biology ID: cbse-cla
Mohit performed an analysis of two different soil samples from two areas A and B. He recorded these results:
Soil Sample A: Lignin 40%, Sugar 0%, Chitin 45%, Nitrogen 5%
Soil Sample B: Lignin 5%, Sugar 35%, Chitin 15%, Nitrogen 45%
Which of these is true about their rate of decomposition in both the soil?
Soil Sample A: Lignin 40%, Sugar 0%, Chitin 45%, Nitrogen 5%
Soil Sample B: Lignin 5%, Sugar 35%, Chitin 15%, Nitrogen 45%
Which of these is true about their rate of decomposition in both the soil?
1
Soil A has a slower rate of decomposition than Soil B.
2
Soil A has a faster rate of decomposition than Soil B.
3
Both have the same rate of decomposition.
4
No decomposition occurs in A and B.
About Soils - CBSE-CLASS-XII
Soils is a vital chapter for CBSE-CLASS-XII aspirants. Mastering the concepts covered in this chapter is essential for securing a top rank.
By rigorously practicing the previous year questions associated with this chapter, you can identify high-yield topics, understand the examiner's perspective, and boost your confidence during the actual exam.
Frequently Asked Questions
Why focus on Soils PYQs?
Analyzing PYQs for this specific chapter reveals the most frequently tested concepts and the typical complexity of questions, allowing you to tailor your study plan efficiently.
How to best use this analysis?
Review the topic breakdown to see which sub-topics within Soils carry the most weight. Then, tackle the questions iteratively to solidify your understanding.