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 4201 - 4205 of 5614
Q. 387
Which of the following best explains why a freshly cut apple turns brown after being left in air for some time?
Q. 388
In the reaction between dilute hydrochloric acid and sodium hydroxide, HCl + NaOH → NaCl + H2O, what type of reaction is this?
Q. 389
Silver chloride turns grey/black on exposure to sunlight, decomposing into silver and chlorine. What type of reaction is this?
Q. 390
A reaction in which heat is released to the surroundings is called what?
Q. 391
Which substance is used in antacid tablets to relieve acidity/heartburn?