Previous Year Questions

Practice Questions

Browse and practice real questions from previous scholarship exams. Use filters to narrow down by year, subject, or exam.

Displaying 546 - 550 of 1956
Hard
. SOF National Science Olympiad (NSO/ISO) · Set C · 2026 . Sample
Q. 390
A reaction in which heat is released to the surroundings is called what?
Medium
. SOF National Science Olympiad (NSO/ISO) · Set C · 2026 . Sample
Q. 391
Which substance is used in antacid tablets to relieve acidity/heartburn?
Medium
. SOF National Science Olympiad (NSO/ISO) · Set C · 2024 . Sample
Q. 392
What is the pH range of acidic solutions?
Hard
. SOF National Science Olympiad (NSO/ISO) · Set C · 2024 . Sample
Q. 393
Plaster of Paris is chemically known as which of the following?
Easy
. SOF National Science Olympiad (NSO/ISO) · Set C · 2026 . Sample
Q. 394
Which of these is used to test for the presence of carbon dioxide gas?