Chemistry

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Q. Which of the following is a common property of halogens? (2023)
  • A. They are all gases at room temperature
  • B. They have low electronegativity
  • C. They form diatomic molecules
  • D. They are metals
Q. Which of the following is a common side effect of antibiotics? (2019)
  • A. Nausea
  • B. Headache
  • C. Diarrhea
  • D. All of the above
Q. Which of the following is a common source of dietary fiber? (2020)
  • A. Meat
  • B. Dairy
  • C. Fruits
  • D. Oils
Q. Which of the following is a common source of omega-3 fatty acids? (2022)
  • A. Olive oil
  • B. Fish oil
  • C. Butter
  • D. Coconut oil
Q. Which of the following is a common use of caffeine? (2020)
  • A. Pain reliever
  • B. Stimulant
  • C. Antiseptic
  • D. Antibiotic
Q. Which of the following is a common use of citric acid? (2022)
  • A. Flavoring agent
  • B. Preservative
  • C. Cleaning agent
  • D. All of the above
Q. Which of the following is a common use of glycerol in food? (2021)
  • A. Sweetener
  • B. Preservative
  • C. Thickening agent
  • D. All of the above
Q. Which of the following is a common use of glycerol? (2023)
  • A. Preservative
  • B. Moisturizer
  • C. Sweetener
  • D. All of the above
Q. Which of the following is a common use of phenol? (2022)
  • A. Disinfectant
  • B. Food preservative
  • C. Flavoring agent
  • D. Coloring agent
Q. Which of the following is a common use of sodium bicarbonate? (2023)
  • A. Baking
  • B. Cleaning
  • C. Antacid
  • D. All of the above
Q. Which of the following is a common use of sulfur? (2022)
  • A. Fertilizers
  • B. Explosives
  • C. Rubber production
  • D. All of the above
Q. Which of the following is a cyclic hydrocarbon? (2019)
  • A. Cyclohexane
  • B. Hexane
  • C. Octane
  • D. Decane
Q. Which of the following is a method for the preparation of alcohols? (2022)
  • A. Hydrolysis of alkyl halides
  • B. Oxidation of alkenes
  • C. Reduction of ketones
  • D. All of the above
Q. Which of the following is a method for the preparation of aldehydes? (2019)
  • A. Hydration of alkynes
  • B. Oxidation of primary alcohols
  • C. Reduction of carboxylic acids
  • D. Dehydrogenation of alcohols
Q. Which of the following is a method of hydrogen production? (2023)
  • A. Electrolysis of water
  • B. Steam reforming of natural gas
  • C. Thermochemical water splitting
  • D. All of the above
Q. Which of the following is a method to reduce carbon footprint? (2020)
  • A. Using fossil fuels
  • B. Increasing energy efficiency
  • C. Deforestation
  • D. Burning waste
Q. Which of the following is a natural source of omega-3 fatty acids? (2023)
  • A. Flaxseed oil
  • B. Coconut oil
  • C. Palm oil
  • D. Corn oil
Q. Which of the following is a property of actinides? (2020)
  • A. All are radioactive
  • B. All are non-metals
  • C. All are stable
  • D. All are found in nature
Q. Which of the following is a property of addition polymers? (2022)
  • A. They are formed by the elimination of small molecules
  • B. They have a high degree of crystallinity
  • C. They are formed from unsaturated monomers
  • D. They are always biodegradable
Q. Which of the following is a property of aldehydes? (2023)
  • A. They are generally more reactive than ketones
  • B. They do not undergo oxidation
  • C. They are less soluble in water than ketones
  • D. They have higher boiling points than alcohols
Q. Which of the following is a property of amorphous solids? (2023)
  • A. Anisotropic
  • B. Isotropic
  • C. Definite melting point
  • D. Ordered structure
Q. Which of the following is a property of covalent network solids? (2023)
  • A. Good electrical conductors
  • B. High melting points
  • C. Malleable
  • D. Soluble in water
Q. Which of the following is a property of ethers? (2020)
  • A. High boiling point
  • B. Soluble in water
  • C. Flammable
  • D. Non-polar
Q. Which of the following is a property of ketones? (2020)
  • A. More reactive than aldehydes
  • B. Less polar than aldehydes
  • C. Higher boiling points than aldehydes
  • D. None of the above
Q. Which of the following is a synthetic dye used in food? (2023)
  • A. Curcumin
  • B. Tartrazine
  • C. Beetroot red
  • D. Carotene
Q. Which of the following is a synthetic food colorant? (2021)
  • A. Beetroot red
  • B. Caramel
  • C. Tartrazine
  • D. Paprika
Q. Which of the following is a synthetic polymer used in everyday products? (2020)
  • A. Cellulose
  • B. Polystyrene
  • C. Starch
  • D. Chitin
Q. Which of the following is a synthetic sweetener? (2023)
  • A. Fructose
  • B. Xylitol
  • C. Aspartame
  • D. Honey
Q. Which of the following is a tertiary alcohol? (2021)
  • A. 2-propanol
  • B. 1-butanol
  • C. Cyclopentanol
  • D. 1-pentanol
Q. Which of the following is a tertiary amine? (2022)
  • A. CH3NH2
  • B. C2H5NH2
  • C. N(CH3)3
  • D. C6H5NH2
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