Edzy
AI TutorResourcesToolsCompareBuy
SearchDownload AppLogin
Edzy

Edzy for Classes 6-12

Edzy is a personal AI tutor for CBSE and State Board students, with curriculum-aligned guidance, practice, revision, and study plans that adapt to each learner.

  • Email: always@edzy.ai
  • Phone: +91 96256 68472
  • WhatsApp: +91 96256 68472
  • Address: Sector 63, Gurgaon, Haryana

Follow Edzy

Browse by Class

  • CBSE Class 6
  • CBSE Class 7
  • CBSE Class 8
  • CBSE Class 9
  • CBSE Class 10
  • CBSE Class 11
  • CBSE Class 12
Explore the CBSE resource hub

Explore Edzy

  • Study Resources
  • Free Study Tools
  • Best Apps for Board Exams
  • Edzy vs ChatGPT
  • About Us
  • Why We Built Edzy
  • Blog
  • CBSE AI Tutor

Support & Legal

  • Help & FAQs
  • Accessibility
  • Privacy Policy
  • Terms & Conditions
  • Refund Policy
  • Cookie Policy
  • Site Directory

© 2026 Edzy. All rights reserved.

Curriculum-aligned learning paths for students in Classes 6-12.

CM
Question Practice

Why has the Iron Pillar of Delhi not rusted despite being exposed to moisture?

Attempt the question, check the explanation, and continue with similar questions to build confidence before exams.

MCQ_SA
CBSE
Class 11
Knowledge Traditions Practices of India
Knowledge Traditions Practices of India
Chemistry and Metallurgy in India
Question Bank

Why has the Iron Pillar of Del...

Single Answer MCQ
Q-00071464

Why has the Iron Pillar of Delhi not rusted despite being exposed to moisture?

1

High-quality metals used

2

Presence of a protective coating

3

Specific alloy composition

4

Environmental factors

Previous QuestionNext Question

Video Explanation

Answer

Solution:

Watch Video Solution

Login to get access

Keep Practising

Students who asked this also explored

Continue with nearby questions to strengthen the same chapter concept while you still have the context fresh in mind.

Q1.

What is the primary focus of alchemy?

Single Answer MCQ
View explanation
Q2.

Which ancient civilization is credited with the origins of alchemy?

Single Answer MCQ
View explanation
Q3.

What is the term used for the elixir that alchemists sought to grant immortality?

Single Answer MCQ
View explanation
Q4.

In which century did modern chemistry start to take shape?

Single Answer MCQ
View explanation