Science MCQs
Practice multiple choice questions with instant feedback. Select an option to see if you're correct.
In a solution of bromine in water, what is the solvent?
A solution is prepared by dissolving 40g salt in 100g water at 30°C. If the solubility of salt at 30°C is 36g/100g water, what type of solution is this?
In Activity 7.4, what was the independent variable (what was changed)?
In a binary solution, which component is present in the smaller quantity?
In Activity 7.5, which salt dissolves faster?
If you continue adding salt to water and it no longer dissolves, you have made a:
If you have a saturated solution of salt and you want to dissolve more salt without adding water, you should:
What is a homogeneous mixture of two or more substances called?
What is the most common solvent?
A solution in which water is the solvent is called a(n):
Quick Stats
Popular Subjects
Practice Tips
Time Management
Practice with time limits for better preparation
Review Mistakes
Always check explanations for wrong answers
Track Progress
Monitor your improvement across subjects
Quick Actions
Did You Know?
Practice Makes Perfect
Regular practice with MCQs can improve your test-taking speed and accuracy by up to 40%.
Active Recall
MCQs engage active recall, which is 50% more effective for long-term memory than passive reading.