Respiratory System MCQs
1. What is the primary function of the human respiratory system?A) DigestionB) CirculationC) Gas exchangeD) ExcretionAnswer: C) Gas exchange 2. …
Digestive System MCQs
1.The process of breaking down food into simpler substances is called:A) RespirationB) DigestionC) CirculationD) ExcretionAnswer: B) Digestion 2. The digestion …
Human Body System MCQs
1. Which system controls and coordinates all activities of the body?A) Digestive systemB) Respiratory systemC) Nervous systemD) Circulatory systemAnswer: C) …
Cell Structure MCQs
1. Who is known as the father of cell biology?A) Charles DarwinB) Robert HookeC) Gregor MendelD) Louis PasteurAnswer: B) Robert …
Household Chemicals MCQs
1. Which household chemical is commonly used as a disinfectant?A) SugarB) BleachC) SaltD) StarchAnswer: B) Bleach 2. The chemical name …
Fertilizers and Pesticides MCQs
1. Which of the following is a nitrogenous fertilizer?A) SuperphosphateB) UreaC) PotashD) GypsumAnswer: B) Urea 2. The chemical formula of …
Metals and Non-Metals MCQs
1. Which of the following is a metal?A) OxygenB) NitrogenC) IronD) SulfurAnswer: C) Iron 2. Which property is generally shown …
Soaps and Detergents MCQs
1. Soap is chemically a:A) Salt of weak acid and strong baseB) Salt of strong acid and weak baseC) Salt …
Air and Its Composition MCQs
1. What is the most abundant gas in the Earth’s atmosphere?A) OxygenB) Carbon dioxideC) NitrogenD) HydrogenAnswer: C) Nitrogen2. Approximately what …
Water and It’s Properties MCQs
1. What is the molecular formula of water?a) H₂O₂b) H₂Oc) HO₂d) H₃OAnswer: b) H₂O 2. Which type of bond holds …