Skip to main content
FG STUDY
Toggle navigation
Online Tests
5th Class
6th Class
7th Class
Matric
Intermediate
ECAT
CSS
NTS
MCQS with Answers
Notes
Essay
MA English Paper Essay
MA English Part 2 Notes
Waiting For Godot Notes
Syllabus
Past Papers
9th Past Papers
10th Past Papers
11th Past Papers
12th Past Papers
LLB Past Papers
BSc Past Papers
MA Past Papers
CONTACT US
FAQ
VIDEOS
ABOUT US
Laughing gas is chemically.
User login
Username
*
Password
*
Create new account
Request new password
Math question
*
7 + 5 =
Solve this simple math problem and enter the result. E.g. for 1+3, enter 4.
Log in
Laughing gas is chemically:
NO
2
N
2
O
NO
N
2
O
4