List of practice Questions

Explain the process of Photosynthesis and write its balanced chemical equation.
Define scattering of light and explain the Tyndall effect with an example.
Define Corrosion and Rancidity and suggest methods for their prevention.
Explain the difference between displacement and double displacement reactions with equations.
Balance the following chemical equations: \(H_2 + O_2 \rightarrow H_2O\) and \(NaOH + HCl \rightarrow NaCl + H_2O\).
Define Oxidation and Reduction reactions with suitable examples (Redox reactions).
Define Acids and Bases according to the Arrhenius theory.
What is the pH scale, and why is pH important in everyday life?
Write the chemical formula and two uses of Washing Soda and Plaster of Paris (POP).
Calculate the focal length of a lens with power –2.0 D and identify its type.
Explain the causes and correction methods for Myopia (Short-sightedness) and Hypermetropia (Long-sightedness).
State Ohm's law and derive the mathematical expression for it.
Define electric power and derive the relation \(P = VI\).
Define 1 kilowatt-hour (kWh) and state its relationship with Joules.
State Fleming’s Left-Hand Rule and Right-Hand Thumb Rule.
Differentiate between Direct Current (DC) and Alternating Current (AC).
Define principal focus and focal length for a concave mirror.
Explain the refraction of light through a rectangular glass slab.
Define refractive index and state Snell’s law of refraction.
Distinguish between a concave and a convex lens with their uses.
Define the power of a lens and state its S.I. unit.
What is an inspection? State one safety measure to be taken during inspection.
Briefly explain any two varieties of amenities found in hotels.
Explain four ways to handle guest complaints in the hotel industry.
Who is a customer in hospitality industry? Explain any three customers in hospitality industry.