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 146 - 150 of 351
Q. 366
An atom of Potassium has atomic number 19 and mass number 39. How many protons does it contain?
Q. 382
When copper is heated in air, it reacts with oxygen to form a black coating of copper oxide. What type of reaction is this?
Q. 398
Baking soda (sodium hydrogen carbonate) is used in antacids and baking. What kind of salt is it?
Q. 414
The Modern Periodic Table arranges elements in order of increasing what?
Q. 430
What is the main nitrogenous waste product excreted by humans?