12th Chemistry Chapter 2 – 2 Mark Questions (Important & Repeated – TN Board)
Prepare for exams with 12th Chemistry Chapter 2 (p-Block Elements-I) important 2 mark questions. This collection includes most repeated and previously asked questions based on TN Board exams, helping students revise key concepts quickly and score better.
p-Block Elements-I – 2 Mark Questions
Most Repeated 2 Marks
Note : Number next to questions tells, how many times it has been repeated in past few years
1.What are the uses of silicones? (6)
- Silicones are used for low temperature lubrication and in vacuum pumps, high temperature oil baths etc…
- They are used for making water proofing clothes
- They are used as insulating material in electrical motor and other appliances
- They are mixed with paints and enamels to make them resistant towards high temperature, sunlight, dampness and chemicals.
2.Write a note on fischer tropsch synthesis? (5)
The reaction of carbon monoxide with hydrogen at a pressure of less than 50 atm using metal catalysts at 500 – 700 K yields saturated and unsaturated hydrocarbons.
3.How will you identify borate radical? Or Ethyl Borate Test ? (4)
When boric acid or borate salt is heated with ethyl alcohol in presence of conc. sulphuric acid, an ester, triethylborate is formed. The vapour of this ester burns with a green edged flame and this reaction is used to identify the presence of borate.
4.Write the uses of Borax?(4)
- Borax is used for the identification of coloured metal ions
- In the manufacture of optical and borosilicate glass, enamels and glazes for pottery
- It is also used as a flux in metallurgy and also acts as a preservative
5.What is inert pair effect? (4)
In heavier post transition metals.the outer s electron(ns) have a tendency to remain inert and show reluctance to take part in the bonding.which is known as inert pair effect
12th Chemistry Chapter 2 Important 2 Marks Questions
Welcome to our collection of 12th Chemistry Chapter 2 Important 2 Marks Questions and Answers prepared from previous year public question papers and repeated board exam questions. These important questions are highly useful for Tamil Nadu State Board Class 12 students preparing for public examinations, school tests, revision exams, and competitive examinations.
Chapter 2 contains several important short answer concepts that are frequently asked in Tamil Nadu board examinations. Practicing important 2 mark questions regularly helps students improve conceptual understanding, quick revision skills, and answer presentation.
Most Repeated 2 Mark Questions
- Uses of silicones
- Fischer-Tropsch synthesis
- Identify borate radical
- Uses of borax
- Inert pair effect
Why Practice 2 Mark Questions?
- Helps in quick revision before exams
- Improves memory of important concepts
- Covers frequently repeated board questions
- Useful for school and public exams
- Enhances answer writing speed
Previous Year Public Exam Questions
The important 2 mark questions provided here are collected from previous year Tamil Nadu 12th Chemistry public question papers and important repeated examination questions. Many of these questions are repeatedly asked in board exams and internal assessments.
Students are advised to practice writing short and precise answers with important key points, definitions, and chemical equations wherever necessary to score full marks in the examination.
More 12th Chemistry Study Materials
Explore more useful Class 12 Chemistry study resources:
- Important 1 Mark Questions
- 3 Marks and 5 Marks Questions
- Book Back Answers
- Chapter Wise Notes
- Most Expected Questions
- Public Exam Study Materials
- Previous Year Question Papers with Answers
Regular revision of important 2 mark questions helps students improve confidence and score high marks in the 12th Chemistry public examination.
