Tag: MCQ on Chemical Reaction and Equation

MCQ on Chemical Reaction and Equation 1- Whenever a chemical change occurs, a chemical ………….. has taken place. (A) Reaction (B) Friction (C) Equation (D) Temperature   2- When a magnesium ribbon burns with a dazzling white fame and changes into a white powder. This white powder is ………………… (A) Magnesium oxide (B) Magnesium reaction […]