MCH-023 Solved Assignment 2026-27 in English | M.Sc Chemistry

The MCH-023 Solved Assignment 2026-27 in English is prepared for students of the M.Sc Chemistry programme studying MCH-023: Environmental Chemistry. This digital PDF provides structured reference material for the applicable assignment questions and supports organised assignment preparation.

Environmental Chemistry connects chemistry with soil, water, atmosphere, pollution, natural resources and environmental protection. Therefore, the subject helps students understand chemical processes that influence environmental quality and sustainable resource management.

IGNOU’s official M.Sc Chemistry Programme Guide lists MCH-023 as Environmental Chemistry with 4 credits. The course covers soil, water resources, water quality, atmosphere and environmental pollution.

The supplied assignment contains 10 main questions, with two 5-mark sections in each question. Consequently, the assignment carries a maximum of 100 marks.

MCH-023 Environmental Chemistry Course Information

The official IGNOU Programme Guide includes topics such as soil quality, soil fertility, water resources, water quality criteria, atmospheric chemistry and environmental pollution within the MCH-023 course.

MCH-023 Solved Assignment 2026-27 Overview

The MCH-023 Solved Assignment 2026-27 in English covers important concepts related to soil, water, atmosphere and environmental pollution.

The first questions focus on soil profile, topography, parent material, metamorphic rocks, granular disintegration and soil texture analysis.

The assignment then discusses soil alkalinity, plant nitrogen, cation exchange capacity and the distribution of global water resources. These topics help students understand the relationship between soil properties, plant nutrients and natural water resources.

Further questions cover groundwater resources in India, groundwater overuse, turbidity and factors affecting water quality. The paper also asks about the Central Pollution Control Board’s designated best uses of water.

The atmospheric section includes the atmospheric effect, greenhouse effect, ozone depletion and global warming. It also examines factors that influence pollutant discharge into the atmosphere, including atmospheric stability, temperature, precipitation, turbulence and solar radiation.

The final questions cover gaseous sampling, dissolved oxygen, biochemical oxygen demand, waste treatment, pesticides, phosphorus removal from sewage and diseases transmitted through pathogenic bacteria in water.

MCH-023 Assignment Questions

Course Code: MCH-023

Course Title: Environmental Chemistry

Assignment Code: MCH-023/TMA/2026

Maximum Marks: 100

Instruction: Answer all the questions given below.

Question 1

a) Explain the following in brief:

i) Soil profile
ii) Topography
iii) Parent material
iv) Metamorphic rocks
v) Granular disintegration (5)

b) How is the soil texture analysis done? Describe in brief. (5)

Question 2

a) Describe the reasons of soil alkalinity and the consequences of the same. (5)

b) How is nitrogen important to the plants? Write the sources of this macronutrient to plants. (5)

Question 3

a) What is meant by the cation exchange capacity (CEC) of soils? What is the property of soil that determines the CEC of soils? How does CEC vary with pH? (5)

b) Describe the distribution of the world’s water resources among oceans, icecaps/glaciers, groundwater, and surface water, providing approximate percentages. (5)

Question 4

a) Explain the importance of groundwater as a water resource in India. What are the problems in overusing groundwater? (5)

b) Define turbidity in water and explain its causes, measurement, and significance for water quality. (5)

Question 5

a) Briefly explain the factors affecting water quality. (5)

b) State the five “designated best uses” of water as per the Central Pollution Control Board (CPCB) classification and give one corresponding primary water quality criterion for each. (5)

Question 6

a) What is meant by the atmospheric effect and the greenhouse effect? (5)

b) Explain how ozone layer depletion is related to global warming. (5)

Question 7

a) How do the following factors affect the discharge of pollutants in the atmosphere?

i) Atmospheric stability
ii) Temperature
iii) Precipitation
iv) Turbulence
v) Solar radiation (5)

b) Distinguish between the following pairs giving examples:

i) Stationary and Mobile sources of pollutants
ii) Indoor and Ambient air pollution (5)

Question 8

a) Name any two methods that are used for collecting gaseous samples and explain any one of these. (5)

b) Briefly explain the following terms:

i) Dissolved Oxygen (DO)
ii) Biochemical Oxygen Demand (BOD) (5)

Question 9

a) Discuss the method of aeration in the treatment of daily wastes. Also give the problems associated with it. (5)

b) Give the characteristics of an ideal pesticide. (5)

Question 10

a) In which form does phosphorus occur in sewage? Also, briefly explain the methods of removing it. (5)

b) How are pathogenic bacteria transmitted in water? List any five diseases transmitted by them. (5)

What Does This MCH-023 Solved Assignment PDF Include?

The MCH-023 Solved Assignment 2026-27 in English provides structured reference material covering all questions in the supplied assignment.

The content includes soil properties, soil texture, soil alkalinity, plant nutrients and cation exchange capacity. It also covers global water resources, groundwater, turbidity and water quality.

In addition, the material discusses atmospheric effects, greenhouse gases, ozone depletion and air pollution. Water pollution topics such as DO, BOD, sewage treatment, pesticides and pathogenic bacteria also receive attention.

Key Features

• MCH-023 Environmental Chemistry
• 2026–27 assignment preparation
• English Medium
• Complete assignment question coverage
• Structured reference answers
• Digital PDF format
• Instant download
• Mobile-friendly PDF
• Laptop and desktop compatible
• Useful for academic reference

Who Can Use the MCH-023 Assignment?

The MCH-023 Solved Assignment 2026-27 in English is intended for students studying MCH-023 under the MSCCHEM programme.

IGNOU’s official Programme Guide includes Environmental Chemistry as MCH-023 and covers soil, water resources, water quality, atmosphere and environmental chemistry topics.

Students should verify their course code, assignment session and medium before purchasing.

How to Get This MCH-023 PDF

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Select the MCH-023 solved assignment and add it to your cart.

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Step 3: Get Instant Access

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Step 5: Start Preparing

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Helpful Assignment Resources

For additional academic support, students can use:

• Mother Publication Home
• IGNOU Updates Blog
• Handwritten Assignment Hard Copy
• Official IGNOU Assignment Questions
• Solved Guess Papers

These resources can help students find assignment updates, official questions and additional study material.

Frequently Asked Questions

1. What is MCH-023?

MCH-023 is Environmental Chemistry under the M.Sc Chemistry programme.

2. Which programme category should I select?

Select:

MSCCHEM

3. How many credits does MCH-023 carry?

MCH-023 carries 4 credits according to the official M.Sc Chemistry Programme Guide.

4. What is the assignment code?

The supplied assignment gives the code as MCH-023/TMA/2026.

5. How many marks does the assignment carry?

The assignment carries a maximum of 100 marks.

6. How many main questions are included?

The assignment contains 10 main questions, with two sections in each question.

7. What topics are covered?

The assignment covers soil, water resources, water quality, atmospheric effects, air pollution, waste treatment, pesticides and waterborne diseases.

8. Is this product available in English?

Yes. This product is prepared in English medium.

9. What format will I receive?

You will receive a digital PDF.

10. Can I access the PDF on mobile?

Yes. You can access it on a smartphone, tablet, laptop or desktop computer.

11. Can I get a handwritten assignment hard copy?

Students who need a handwritten assignment hard copy can visit the Handwritten Assignment Hard Copy page.

Disclaimer

Mother Publication independently prepares this material for educational and reference purposes. Students should understand the content and prepare their assignments appropriately. Mother Publication is not affiliated with, endorsed by, or officially associated with IGNOU.

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