Skip to content
Prelims
Mains
Current Affairs
Explore
Login / Register
Login
Menu
Menu
Close
Learn
Home
What is UPSC?
Syllabus
Current Affairs
Prelims
Mains
Explore
Practice & tools
PYQs
Practice
Mentorship
What Matters Today
Digital Diary
My Progress
Account & help
My dashboard
Plans & pricing
About
Contact
Log in
Create account
PYQs
Diary
Practice
My Progress
Plans
← Exit
Science & Technology PYQ Test 08
10:00
Question 1 of 10
UPSC CSE Prelims · 2008 · General Science & Technology
What are Rubies and Sapphires chemically known as?
A
Silicon Dioxide
Eliminated
B
Aluminium Oxide
Eliminated
C
Lead Tetroxide
Eliminated
D
Boron Nitride
Eliminated
Mark for review
Previous
Save & Next
