Free Chemistry MCQs Mock Test Online with Answers

Q1 : Which is a key raw material for the petrochemical industry?

A: Crude oil B: Natural gas C: Coal D: All of the above

Q2 : Which is an example of H-bonding in organic compounds?

A: Alcohols B: Carboxylic acids C: Both a & b D: None of the above

Q3 : What is waste sorting?

A: Separating waste types B: Mixing waste types C: Disposing waste D: Burning waste

Q4 : What is the main raw material for the production of glass?

A: Silica B: Soda ash C: Limestone D: All of the above

Q5 : Which is an example of a galvanic cell?

A: Battery B: Electrolysis cell C: Fuel cell D: Both a & c

Q6 : Which is a major challenge in fertilizer production?

A: Raw material availability B: Energy costs C: Environmental regulations D: All of the above

Q7 : What is biocatalysis?

A: Use of enzymes in reactions B: Use of metals in reactions C: Use of acids in reactions D: Use of bases in reactions

Q8 : What is the concept of bioaccumulation?

A: The accumulation of pollutants in living organisms B: The accumulation of pollutants in the environment C: The accumulation of pollutants in ecosystems D: The accumulation of pollutants in food chains

Q9 : What is the main characteristic of hydrogen bonding?

A: Directional B: Non-directional C: Both a & b D: None of the above

Q10 : Which is a major challenge in galvanic cell design?

A: Increasing energy density B: Reducing internal resistance C: Improving cycle life D: All of the above

Q11 : What is the purpose of electroplating?

A: Improve appearance B: Increase durability C: Prevent corrosion D: All of the above

Q12 : Which is a renewable resource?

A: Biomass B: Coal C: Oil D: Gas

Q13 : Which is a major type of nitrogenous fertilizer?

A: Urea B: Ammonium nitrate C: Ammonium sulfate D: All of the above

Q14 : What is the purpose of a separator in a battery?

A: Prevents short circuit B: Allows ion flow C: Increases capacity D: Both a & b

Q15 : What is the cell reaction in a galvanic cell?

A: Oxidation at anode, reduction at cathode B: Reduction at anode, oxidation at cathode C: Both a & b D: None

Q16 : What is the purpose of nuclear waste disposal?

A: To isolate radioactive materials from the environment B: To recycle radioactive materials C: To reuse radioactive materials D: To store radioactive materials indefinitely

Q17 : Which is a sustainable waste management practice?

A: Recycling B: Landfilling C: Incineration D: Dumping

Q18 : What is the purpose of carbon offsetting?

A: To compensate for greenhouse gas emissions by reducing emissions elsewhere B: To increase greenhouse gas emissions C: To ignore greenhouse gas emissions D: To reduce greenhouse gas emissions by changing behavior

Q19 : What is the effect of hydrogen bonding on viscosity?

A: Increases B: Decreases C: No effect D: None of the above

Q20 : How does H-bonding affect solubility?

A: Increases B: Decreases C: No effect D: None

Q21 : What is the concept of dose-response?

A: The relationship between the amount of a pollutant and its effect on an organism B: The relationship between the amount of a pollutant and its effect on the environment C: The relationship between the amount of a pollutant and its effect on human health D: The relationship between the amount of a pollutant and its effect on ecosystems

Q22 : Which is a major product of fermentation?

A: Ethanol B: Lactic acid C: Citric acid D: All of the above

Q23 : What is the unit of cell potential?

A: Volt B: Ampere C: Coulomb D: Ohm

Q24 : What is the main raw material for the production of synthetic fibers?

A: Petrochemicals B: Natural fibers C: Cellulose D: Coal

Q25 : What is the impact of soil pollution on human health?

A: Cancer, neurological problems, and reproductive problems B: Skin problems, eye problems, and hearing loss C: Respiratory problems, cardiovascular disease, and kidney disease D: Gastrointestinal problems, liver disease, and pancreatic disease

Q26 : Which is an example of a primary battery?

A: Alkaline battery B: Lithium battery C: Both a & b D: None of these

Q27 : What are the main air pollutants?

A: Particulate matter, ozone, nitrogen oxides, sulfur dioxide, and carbon monoxide B: Oxygen, nitrogen, carbon dioxide, and water vapor C: Methane, ammonia, hydrogen sulfide, and volatile organic compound D: Chlorofluorocarbons, halons, and methyl bromide

Q28 : What is the purpose of a galvanic cell?

A: Generate electricity B: Store electricity C: Both a & b D: None

Q29 : What is the process of producing polyethylene?

A: Polymerization of ethylene B: Polymerization of propylene C: Polymerization of styrene D: Polymerization of vinyl chloride

Q30 : What is anaerobic digestion?

A: Breaking down waste without oxygen B: Breaking down waste with oxygen C: Burning waste D: Recycling waste

Q31 : What is the concept of carbon footprint?

A: The amount of greenhouse gas emissions produced by an individual or organization B: The amount of greenhouse gas emissions produced by a country or region C: The amount of greenhouse gas emissions produced by a product or service D: The amount of greenhouse gas emissions produced by a process or activity

Q32 : What is the main raw material for SSP (Single Super Phosphate) production?

A: Phosphate rock and sulfuric acid B: Phosphate rock and phosphoric acid C: Phosphate rock and nitric acid D: All of the above

Q33 : Which type of bond is present in a sodium chloride (NaCl) molecule?

A: Ionic bond B: Covalent bond C: Metallic bond D: None

Q34 : Which molecule is an example of a polar covalent bond?

A: H2O B: O2 C: N2 D: None

Q35 : Which is a common electrolyte used in electrolysis?

A: Sodium chloride B: Sulfuric acid C: Sodium hydroxide D: All of the above

Q36 : What is the purpose of water treatment?

A: To remove pollutants and contaminants from water B: To add pollutants and contaminants to water C: To change the pH of water D: To increase the temperature of water

Q37 : What is the concept of circular economy?

A: The use of materials in a continuous cycle to reduce waste B: The use of materials in a linear fashion to increase waste C: The use of materials in a random fashion to ignore waste D: The use of materials in a cyclical fashion to increase waste

Q38 : What is the purpose of plastic recycling?

A: To reduce the amount of plastic waste in the environment B: To increase the amount of plastic waste in the environment C: To change the type of plastic waste in the environment D: To ignore the plastic waste in the environment

Q39 : Which is a major application of zinc-air batteries?

A: Electric vehicles B: Portable electronics C: Hearing aids D: All of the above

Q40 : What is styrene used for?

A: Production of polystyrene B: Production of synthetic rubber C: Production of resins D: All of the above

Q41 : Which is a primary method of waste disposal?

A: Landfilling B: Recycling C: Composting D: Incineration

Q42 : Which is a major industrial application of carbon dioxide?

A: Fire extinguishers B: Refrigeration C: Carbonation of beverages D: All of the above

Q43 : Which process is used to produce nitric acid?

A: Ostwald process B: Haber process C: Contact process D: Solvay process

Q44 : Which is a hazardous waste disposal method?Incineration

A: Incineration B: Landfilling C: Composting D: Recycling

Q45 : What is the concept of defense-in-depth in nuclear safety?

A: Multiple layers of protection to prevent nuclear accidents B: A single layer of protection to prevent nuclear accidents C: A passive safety system to mitigate nuclear accidents D: An active safety system to prevent nuclear accidents

Q46 : What is the process of producing synthetic rubber?

A: Polymerization of butadiene B: Polymerization of styrene C: Polymerization of isoprene D: All of the above

Q47 : Which atoms are involved in hydrogen bonding?

A: H & O B: H & N C: H & F D: All of the above

Q48 : What is the purpose of catalytic converters in vehicles?

A: Reduce emissions B: Increase fuel efficiency C: Improve engine performance D: All of the above

Q49 : Which is NOT a characteristic of H-bonds?

A: Directional B: Weak C: Which is NOT a characteristic of H-bonds? D: None of the above

Q50 : What is source reduction?

A: Reducing waste at source B: Recycling waste C: Treating waste D: Disposing waste

Q51 : What is the main raw material for the production of soap?

A: Fats and oils B: Alkalis C: Both a & b D: None

Q52 : What is phytoremediation?

A: Using plants to clean pollutants B: Using chemicals to clean pollutants C: Using microbes to clean pollutants D: Using heat to clean pollutants

Q53 : What is the purpose of electroplating?

A: Improve appearance B: Increase durability C: Prevent corrosion D: All of the above

Q54 : What is soil pollution?

A: The presence of harmful substances in soil B: The presence of beneficial substances in soil C: The absence of substances in soil D: The presence of natural substances in soil

Q55 : What is the effect of H-bonding on vapor pressure?

A: Increases B: Decreases C: No effect D: None

Q56 : Why do metals have high density?

A: Due to ionic bonds B: Due to covalent bonds C: Due to metallic bonds D: None of the above

Q57 : What is catalysis in Green Chemistry?

A: Increasing reaction rate B: Reducing waste C: Improving selectivity D: All of the above

Q58 : Which is a hazardous waste?

A: Batteries B: Medical waste C: Chemical waste D: All of the above

Q59 : Which is a major application of butadiene?

A: Production of synthetic rubber B: Production of nylon C: Production of plastics D: All of the above

Q60 : What is the role of the salt bridge in a galvanic cell?

A: Completes circuit B: Maintains charge balance C: Increases potential D: Both a & b

Q61 : What is the purpose of environmental policy?

A: To protect the environment and promote sustainability B: To promote economic growth and development C: To protect human health and safety D: To regulate environmental activities

Q62 : What is the concept of public acceptance?

A: The acceptance of nuclear energy by the public B: The acceptance of nuclear energy by governments C: The acceptance of nuclear energy by international organizations D: The acceptance of nuclear energy by nuclear operators

Q63 : What is the role of potassium in fertilizers?

A: Promotes root growth B: Promotes flower formation C: Improves disease resistance D: All of the above

Q64 : Which principle of Green Chemistry involves *atom economy?

A: Prevention of waste B: Maximizing efficiency C: Safer chemicals design D: Renewable feedstocks

Q65 : Which is a common metal used in electroplating?

A: Copper B: Nickel C: Chromium D: All of the above

Q66 : What is environmental chemistry?

A: The study of the chemical processes that occur in the environment B: The study of the impact of human activities on the environment C: The study of the chemical composition of the environment D: The study of the environmental impact of chemical processes

Q67 : What is the Solvay process used for?

A: Production of sodium carbonate B: Production of sulfuric acid C: Production of ammonia D: Production of nitric acid

Q68 : Which is a major product of the agrochemical industry?

A: Pesticides B: Fertilizers C: Herbicides D: All of the above

Q69 : Which battery type is known for its high discharge rate and used in devices like power tools?

A: Alkaline battery B: Lithium-ion battery C: Nickel-metal hydride battery D: None of the above

Q70 : Which is a type of H-bonding?

A: O-H...O B: N-H...O C: Both a & b D: None of the above

Q71 : Which molecule is an example of an ionic bond?

A: NaCl B: H2O C: O2 D: All of the above

Q72 : Which is a method of preventing corrosion?

A: Cathodic protection B: Anodic protection C: Coating D: All of the above

Q73 : What is noise pollution?

A: The presence of excessive noise in the environment B: The presence of beneficial sounds in the environment C: The absence of sounds in the environment D: The presence of natural sounds in the environment

Q74 : What is the electronegativity difference in covalent bonds?

A: High B: Low C: Medium D: None

Q75 : Which is a green synthesis method?

A: Microwave-assisted synthesis B: High-temperature synthesis C: Solvent-free synthesis D: Both a & c

Q76 : Which type of intermolecular force is responsible for the high boiling point of water?

A: London dispersion forces B: Dipole-dipole forces C: Hydrogen bonding D: Oxidation

Q77 : Which is an example of H-bonding in polymers?

A: Nylon B: Polyvinyl alcohol C: Both a & b D: None

Q78 : Which is a major use of sodium carbonate in the chemical industry?

A: Glass production B: Soap production C: Paper production D: All of the above

Q79 : Which bond has a higher melting point?

A: Ionic B: Covalent C: Both a & b D: None

Q80 : Which is a type of corrosion?

A: Uniform corrosion B: Pitting corrosion C: Crevice corrosion D: All of the above

Q81 : What is the main characteristic of a resonance structure?

A: Delocalization of electrons B: Localization of electrons C: Both a & b D: None

Q82 : What is the role of the generator in a nuclear power plant?

A: To convert mechanical energy into electrical energy B: To convert electrical energy into mechanical energy C: To generate steam from heat D: To cool the reactor

Q83 : Which is a major use of ethylene glycol?

A: Antifreeze B: Production of polyester C: Production of solvents D: All of the above

Q84 : What is a major disadvantage of flow batteries?

A: Low energy density B: High cost C: Complex system D: All of the above

Q85 : What is the efficiency of a nuclear power plant?

A: The ratio of electrical energy output to heat energy input B: The ratio of heat energy input to electrical energy output C: The ratio of mechanical energy output to electrical energy input D: The ratio of electrical energy input to mechanical energy output

Q86 : What is extended producer responsibility (EPR)?

A: Producers responsible for waste management B: Consumers responsible for waste management C: Government responsible for waste management D: NGOs responsible for waste management

Q87 : Which molecule has the highest boiling point due to H-bonding?

A: H2O B: HF C: NH3 D: None

Q88 : What is the concept of biomagnification?

A: The increase in concentration of pollutants in living organisms as they move up the food chain B: The decrease in concentration of pollutants in living organisms as they move up the food chain C: The accumulation of pollutants in living organisms D: The release of pollutants into the environment

Q89 : What is the main cause of climate change?

A: The increase in greenhouse gas emissions B: The decrease in greenhouse gas emissions C: The increase in ozone-depleting substances D: The decrease in ozone-depleting substances

Q90 : What is the Contact process used for?

A: Production of sulfuric acid B: Production of nitric acid C: Production of ammonia D: Production of sodium carbonate

Q91 : Which is an example of a molecule with hydrogen bonding?

A: H2O B: NH3 C: HF D: All of the above

Q92 : Why are metals good conductors of heat?

A: Due to ionic bonds B: Due to covalent bonds C: Due to metallic bonds D: None of the above

Q93 : Which type of bond is present in metals?

A: Ionic B: Covalent C: Metallic D: None

Q94 : What is the impact of noise pollution on human health?

A: Hearing loss, stress, and cardiovascular disease B: Skin problems, eye problems, and respiratory problems C: Neurological problems, reproductive problems, and kidney disease D: Gastrointestinal problems, liver disease, and pancreatic disease

Q95 : Which is an example of H-bonding in proteins?

A: Alpha helix B: Beta sheet C: Both a & b D: None of the above

Q96 : What is energy efficiency?

A: Using less energy for same output B: Using more energy for same output C: Generating energy from waste D: Storing energy

Q97 : What is leachate?

A: Liquid from landfill B: Gas from landfill C: Solid waste D: Recycled water

Q98 : What is environmental remediation?

A: The process of cleaning up pollutants from the environment B: The process of containing pollutants in the environment C: The process of removing pollutants from the environment D: The process of restoring the environment to its original state

Q99 : What is the main raw material for phosphate fertilizers?

A: Phosphate rock B: Sulfuric acid C: Nitric acid D: Ammonia

Q100 : What is waste hierarchy?

A: Reduce > Reuse > Recycle B: Recycle > Reduce > Reuse C: Reuse > Reduce > Recycle D: Reduce > Recycle > Reuse

Free Chemistry MCQs Mock Test Online with Answers

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