Category Archives: Engineering Chemistry I MCQ

This set of Engineering Chemistry Multiple Choice Questions & Answers (MCQs) focuses on “Photosynthesis”. 1. In photochemistry of photosynthesis, NADPH stands for _______ a) Nicotinamide Adenine Dinucleotide Phosphate b) Nicotinamide Amine Dinucleotide Phosphate c) Nicotinamide Adenine Dinucleotide Phosphatic hydrogen d) Nicotinamide Amine Dinucleotide Phosphatic hydrogen 2. In photosynthesis, energy of sun is converted into chemical … Read more

This set of Engineering Chemistry Multiple Choice Questions & Answers (MCQs) focuses on “Quantum Efficiency”. 1. To express the relationship between the number of molecules reacting with the number of photons absorbed, the concept of _____ was introduced. a) quantum efficiency b) photon analysis c) quantum mechanism d) photon degradation 2. Classification of photochemical reaction … Read more

This set of Engineering Chemistry Multiple Choice Questions & Answers (MCQs) focuses on “Laws of Photochemistry”. 1. __________ is also known as the Principle of Photochemical Activation. a) Grothus–Draper law b) Lambert’s law c) Draper law d) Stark law 2. The absorbed radiation does not necessarily cause a chemical reaction. a) True b) False 3. … Read more

This set of Engineering Chemistry Multiple Choice Questions & Answers (MCQs) focuses on “Photochemical Reactions”. 1. The reactions which are caused by heat and in absence of light is called _____ a) Photochemical reactions b) Dark reactions c) Reversible reaction d) Reversible photochemical reaction 2. In photochemical reactions, absorption of _____ radiations takes place. a) … Read more

This set of Engineering Chemistry Multiple Choice Questions & Answers (MCQs) focuses on “Uses and Limitations of Phase Rule”. 1. For the T-C relation in phenol, there happens a regular sharpening in concentration of phenol. What will happen if the equilibrium conditions are varied at a particular point? a) The curve remains unchanged b) The … Read more

This set of Engineering Chemistry Multiple Choice Questions & Answers (MCQs) focuses on “Two Component System”. 1. What is the definition of a lower critical temperature? a) The minimum temperature at which equilibrium is achieved b) The lowest temperature at which two components will attain vapor state c) The lowest temperature at which two components … Read more

This set of Engineering Chemistry Multiple Choice Questions & Answers (MCQs) focuses on “One Component System”. 1. With respect to one component system, what is the mixture present at the triple point? a) Water b) Ice c) Water vapor d) Water, ice, vapor 2. Which of the following statements is incorrect about the triple point? … Read more

This set of Tricky Engineering Chemistry Questions and Answers focuses on “Phases and Components – 2”. 1. If a system has 7 solid species and 2 gaseous species, what is the number of phases present in the system? a) 8 b) 7 c) 9 d) 6 2. If a system has n number of gaseous … Read more

This set of Engineering Chemistry Multiple Choice Questions & Answers (MCQs) focuses on “Phases and Components – 1”. 1. What is the number of phases and components present in the following reaction? MgCO3 ⟶ MgO +CO2 (Gas) a) 3, 2 b) 1, 3 c) 2, 3 d) 1, 2 2. What is the number of … Read more

This set of Advanced Engineering Chemistry Questions and Answers focuses on “Application of Phase Rule to One Component System”. 1. Which of the following equilibriums can phase rule be applies to? a) Isometric b) Isobaric c) Isometric and Isobaric d) Mechanical 2. What kind of particles can phase rule be applied to? a) Micro b) … Read more