Bases and Salts MCQs
1. What is a base according to Arrhenius theory?A) Proton donorB) Electron donorC) Produces OH⁻ ions in waterD) Produces H⁺ …
Acids MCQs
1. An acid is a substance that produces ______ in aqueous solution.A) OH⁻ ionsB) H⁺ ionsC) O²⁻ ionsD) Na⁺ ionsAnswer: …
Nuclear Energy Basics MCQs
1. Compared to fossil fuels, nuclear power plants produce:A) More carbon dioxideB) Less carbon dioxide during operationC) Equal carbon dioxideD) …
Waves MCQs
1. Which of the following is a mechanical wave?A) Light waveB) Radio waveC) Sound waveD) X-rayAnswer: C) Sound wave 2. …
Friction MCQs
1. Friction is a force thatA) Pulls objects downwardB) Opposes motion between two surfacesC) Increases motionD) Acts only on moving …
Simple Machines MCQs
1. Which of the following is not a type of simple machine?A) LeverB) PulleyC) GearD) Inclined planeAnswer: C) Gear 2. …
Magnetism MCQs
1. Which of the following materials is naturally magnetic?A) CopperB) IronC) AluminumD) LeadAnswer: B) Iron 2.A magnet has two poles …
Electricity MCQs
1. What is the unit of electric current?a) Voltb) Amperec) Ohmd) CoulombAnswer: b) Ampere 2. Which particle is responsible for …
Reflection and Refraction MCQs
1. The bouncing back of light from a surface is called:A) RefractionB) DispersionC) ReflectionD) DiffusionAnswer: C) Reflection 2. The law …
Light and Its Properties MCQs
1. Light is a form of:A) MatterB) EnergyC) ForceD) SoundAnswer: B) Energy 2. The speed of light in vacuum is …