📘 Study MCQs Q1. What type of reaction occurs when calcium oxide and water combine to form a single product, calcium hydroxide? A. Decomposition reaction B. Displacement reaction C. Combination reaction D. Double displacement reaction AnswerC. Combination reactionDetails A combination reaction is defined as a reaction where two or more substances combine to form a […]
📘 Study MCQs Q1. What happens when copper powder is heated in air? A. It melts. B. It turns white. C. Its surface gets coated with black copper(II) oxide. D. It evaporates. AnswerC. Its surface gets coated with black copper(II) oxide.Details CloseWhen copper powder is heated in air, it reacts with oxygen to form copper(II)
📘 Study MCQs Q1. What happens when ferrous sulphate crystals are heated strongly? A. They melt without any change. B. They change colour and decompose into simpler products. C. They combine with oxygen to form a new compound. D. They dissolve into a liquid. AnswerB. They change colour and decompose into simpler products.Details CloseWhen ferrous
📘 Study MCQs Q1. What helps us determine that a chemical reaction has taken place? A. Only a change in state B. Only a change in colour C. Change in state, colour, temperature, or evolution of gas D. Only evolution of gas AnswerC. Change in state, colour, temperature, or evolution of gasDetails A chemical reaction
Note:MCQ Read Mode is designed for focused learning before moving to Test Mode—The “Answer” button shows quick answers But “Detail” button reveals its explanation to build a strong concept before moving to Test Mode. 📘 Study MCQs Q1. What is a chemical equation? A. A statement of physical change B. A representation of a chemical
Q1. A spherical mirror whose reflecting surface is curved inward is called a) Convex mirror b) Plane mirror c) Concave mirror d) Cylindrical mirror Answer: Concave mirror. Why correct: The surface bends inward. Why others wrong: Others are different types. Q2. A mirror which always forms a virtual, erect and diminished image is a) Concave
PHYSICSII-EXPLAINED Read More »
Physics MCQ Quiz Physics MCQ Quiz Test your knowledge with these multiple choice questions Reset & Reshuffle Show Results Reveal Answers Quiz Results × Your Name: Share via Email Download Summary (CSV)
Refraction of Light MCQs Refraction of Light – MCQs with Answers & Explanation Q1. Which three lie in the same plane according to the first law of refraction? a) Incident ray, reflected ray and mirror b) Incident ray, refracted ray and normal c) Reflected ray, image and mirror d) Normal, lens and focus Answer: Incident
physics-i explained Read More »
