Category: Chemistry GK MCQ

Q1. What substance has a pH value of 7, indicating neutrality?a) Lemon juiceb) Vinegarc) Pure waterd) Bleach Q2. Which of the following substances has a pH value below 7?a) Milkb) Baking soda solutionc) Lemon juiced) Soap solution Q3. What is the pH range of acidic substances on the pH scale?a) 0-4b) 5-7c) 7-10d) 11-14 Q4. […]

Q1. What is the process by which plants convert light energy into chemical energy?a) Photosynthesisb) Respirationc) Fermentationd) Transpiration Q2. Which process involves the breakdown of glucose to release energy in cells?a) Photosynthesisb) Respirationc) Fermentationd) Transpiration Q3. What is the process by which a cell divides into two daughter cells?a) Mitosisb) Meiosisc) Fissiond) Budding Q4. Which

Q1. What is the symbol for hydrogen?a) Hgb) Hec) Hd) Hy Q2. Which element’s symbol is “Na”?a) Nitrogenb) Neonc) Nickeld) Sodium Q3. What is the symbol for carbon?a) Cob) Crc) Cad) C Q4. Which element’s symbol is “Ag”?a) Goldb) Silverc) Silicond) Argon Q5. What is the symbol for iron?a) Ib) Fec) Ind) Ir Q6. Which

Q1. What is the primary difference between soaps and detergents?a) Soaps are synthetic, while detergents are natural.b) Soaps are more effective in hard water, while detergents are not.c) Soaps are derived from animal fats, while detergents are synthetic compounds.d) Soaps are solid, while detergents are liquid. Q2. Which of the following is a characteristic of

Q1. What role does chemistry play in the production of pharmaceutical drugs?a) Ensuring food safetyb) Developing new agricultural techniquesc) Synthesizing medicinal compoundsd) Generating electricity Q2. Which aspect of chemistry contributes to the development of new materials for consumer products?a) Analytical chemistryb) Organic chemistryc) Polymer chemistryd) Electrochemistry Q3. How does chemistry contribute to environmental protection?a) By

Q1. Which of the following is a natural polymer that serves as a primary raw material for rubber production?a) Celluloseb) Nylonc) Latexd) Polyethylene Q2. What is the primary chemical component of natural rubber?a) Ethyleneb) Propylenec) Isoprened) Butadiene Q3. Which process involves treating natural rubber with sulfur to improve its mechanical properties?a) Vulcanizationb) Polymerizationc) De-polymerizationd) Oxidation

Q1. What is the primary chemical composition of ceramics?a) Carbonb) Hydrogenc) Oxygend) Nitrogen Q2. Which of the following is a common raw material used in the production of ceramics?a) Iron oreb) Petroleumc) Clayd) Wood pulp Q3. What type of bonding is typically found in ceramic materials?a) Metallic bondingb) Covalent bondingc) Ionic bondingd) Hydrogen bonding Q4.

Q1. Which of the following is the primary constituent of petroleum?a) Oxygenb) Carbonc) Nitrogend) Hydrogen Q2. Which type of hydrocarbon molecules dominate the composition of paraffin wax obtained from petroleum?a) Saturated hydrocarbonsb) Unsaturated hydrocarbonsc) Aromatic hydrocarbonsd) Aliphatic hydrocarbons Q3. What is the main factor determining the properties of different fractions obtained during petroleum refining?a) Molecular

Q1. Which of the following greenhouse gases is primarily responsible for global warming?a) Carbon monoxideb) Methanec) Nitrous oxided) Sulfur dioxide Q2. Acid rain is primarily caused by the emissions of:a) Carbon dioxideb) Oxygenc) Sulfur dioxide and nitrogen oxidesd) Methane Q3. Which of the following pollutants is associated with the depletion of the ozone layer?a) Carbon

Q1. Which of the following is a primary component of photochemical smog, formed by the reaction of sunlight with pollutants in the atmosphere?a) Sulfur dioxide (SO2)b) Carbon monoxide (CO)c) Nitrogen dioxide (NO2)d) Ozone (O3) Q2. Which atmospheric pollutant is primarily released from the combustion of fossil fuels and biomass, and can lead to carbon monoxide