Q. Which of the following is a common household disinfectant?
-
A.
Bleach
-
B.
Vinegar
-
C.
Baking soda
-
D.
Salt
Solution
Bleach is widely used as a disinfectant to kill bacteria and viruses.
Correct Answer: A — Bleach
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Q. Which of the following is a common method for synthesizing aromatic compounds?
-
A.
Friedel-Crafts alkylation
-
B.
Hydrogenation
-
C.
Dehydration
-
D.
Oxidation
Solution
Friedel-Crafts alkylation is a common method used to synthesize aromatic compounds by introducing alkyl groups onto the aromatic ring.
Correct Answer: A — Friedel-Crafts alkylation
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Q. Which of the following is a common method for the synthesis of aromatic compounds?
-
A.
Hydrogenation
-
B.
Dehydrogenation
-
C.
Electrophilic substitution
-
D.
Nucleophilic addition
Solution
Electrophilic substitution is a common method for synthesizing aromatic compounds by introducing new substituents onto the aromatic ring.
Correct Answer: C — Electrophilic substitution
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Q. Which of the following is a common preservative used in food?
-
A.
Sodium chloride
-
B.
Sodium benzoate
-
C.
Sucrose
-
D.
Vinegar
Solution
Sodium benzoate is commonly used as a preservative to inhibit the growth of bacteria and fungi.
Correct Answer: B — Sodium benzoate
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Q. Which of the following is a common test for the presence of aromatic compounds?
-
A.
Bromine water test
-
B.
Baeyer test
-
C.
Tollen's test
-
D.
Benzene test
Solution
The bromine water test can be used to detect unsaturation; however, aromatic compounds do not react with bromine water, indicating their stability.
Correct Answer: A — Bromine water test
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Q. Which of the following is a common use of aspirin in everyday life?
-
A.
Pain relief
-
B.
Antibiotic
-
C.
Antidepressant
-
D.
Antihistamine
Solution
Aspirin is widely used for pain relief due to its analgesic properties.
Correct Answer: A — Pain relief
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Q. Which of the following is a common use of aspirin?
-
A.
Pain relief
-
B.
Antibiotic
-
C.
Antidepressant
-
D.
Antihistamine
Solution
Aspirin is commonly used for pain relief and to reduce inflammation.
Correct Answer: A — Pain relief
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Q. Which of the following is a common use of chlorine in everyday life?
-
A.
Disinfecting water
-
B.
Flavoring food
-
C.
Coloring hair
-
D.
Preserving meat
Solution
Chlorine is commonly used to disinfect drinking water, making it safe for consumption.
Correct Answer: A — Disinfecting water
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Q. Which of the following is a common use of ethanol in everyday life?
-
A.
Fuel
-
B.
Antiseptic
-
C.
Solvent
-
D.
All of the above
Solution
Ethanol is used as a fuel, antiseptic, and solvent, making it versatile in everyday applications.
Correct Answer: D — All of the above
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Q. Which of the following is a common use of ethanol?
-
A.
Fuel
-
B.
Antiseptic
-
C.
Solvent
-
D.
All of the above
Solution
Ethanol is widely used as a fuel, antiseptic, and solvent, making it versatile in everyday applications.
Correct Answer: D — All of the above
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Q. Which of the following is a common use of hydrogen peroxide in households?
-
A.
Disinfectant
-
B.
Bleach
-
C.
Antiseptic
-
D.
All of the above
Solution
Hydrogen peroxide is used as a disinfectant, bleach, and antiseptic in various household applications.
Correct Answer: D — All of the above
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Q. Which of the following is a common use of hydrogen peroxide?
-
A.
Disinfectant
-
B.
Bleach
-
C.
Antiseptic
-
D.
All of the above
Solution
Hydrogen peroxide is used as a disinfectant, bleach, and antiseptic.
Correct Answer: D — All of the above
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Q. Which of the following is a common use of polyethylene?
-
A.
Insulation for wires
-
B.
Packaging materials
-
C.
Automobile parts
-
D.
Textiles
Solution
Polyethylene is widely used in packaging materials due to its flexibility and durability.
Correct Answer: B — Packaging materials
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Q. Which of the following is a common use of polyvinyl chloride (PVC)?
-
A.
Food packaging
-
B.
Electrical insulation
-
C.
Clothing
-
D.
Automobile tires
Solution
Polyvinyl chloride (PVC) is commonly used in electrical insulation and construction materials.
Correct Answer: B — Electrical insulation
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Q. Which of the following is a common use of sodium bicarbonate in everyday life?
-
A.
Baking
-
B.
Cleaning
-
C.
Pest control
-
D.
All of the above
Solution
Sodium bicarbonate, or baking soda, is used in baking, cleaning, and even pest control.
Correct Answer: D — All of the above
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Q. Which of the following is a common use of vinegar in households?
-
A.
Cleaning agent
-
B.
Food preservative
-
C.
Flavoring agent
-
D.
All of the above
Solution
Vinegar is used in households for cleaning, preserving food, and as a flavoring agent.
Correct Answer: D — All of the above
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Q. Which of the following is a common use of vinegar?
-
A.
Preservative
-
B.
Cleaning agent
-
C.
Flavoring agent
-
D.
All of the above
Solution
Vinegar is used as a preservative, cleaning agent, and flavoring agent.
Correct Answer: D — All of the above
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Q. Which of the following is a component of nucleotides?
-
A.
Fatty acids
-
B.
Amino acids
-
C.
Nitrogenous bases
-
D.
Monosaccharides
Solution
Nucleotides are made up of a nitrogenous base, a sugar, and a phosphate group.
Correct Answer: C — Nitrogenous bases
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Q. Which of the following is a derivative of benzene?
-
A.
Ethylene
-
B.
Acetylene
-
C.
Phenol
-
D.
Propylene
Solution
Phenol is a derivative of benzene, where one hydrogen atom is replaced by a hydroxyl group (-OH).
Correct Answer: C — Phenol
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Q. Which of the following is a derivative of carboxylic acid?
-
A.
Alcohol
-
B.
Aldehyde
-
C.
Ester
-
D.
Alkane
Solution
Ester is a derivative of carboxylic acid formed by the reaction of an acid with an alcohol.
Correct Answer: C — Ester
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Q. Which of the following is a dicarboxylic acid?
-
A.
Acetic acid
-
B.
Oxalic acid
-
C.
Formic acid
-
D.
Butanoic acid
Solution
Oxalic acid (C2H2O4) is a dicarboxylic acid as it contains two carboxylic acid groups.
Correct Answer: B — Oxalic acid
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Q. Which of the following is a disaccharide?
-
A.
Fructose
-
B.
Maltose
-
C.
Glucose
-
D.
Glycogen
Solution
Maltose is a disaccharide composed of two glucose units.
Correct Answer: B — Maltose
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Q. Which of the following is a function of carbohydrates?
-
A.
Energy source
-
B.
Hormone production
-
C.
Genetic coding
-
D.
Cell membrane structure
Solution
Carbohydrates primarily serve as an energy source for living organisms.
Correct Answer: A — Energy source
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Q. Which of the following is a function of lipids?
-
A.
Energy storage
-
B.
Catalysis
-
C.
Genetic information
-
D.
Structural support
Solution
Lipids are primarily used for energy storage in organisms.
Correct Answer: A — Energy storage
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Q. Which of the following is a function of proteins in the body?
-
A.
Energy storage
-
B.
Hormonal regulation
-
C.
Transport of molecules
-
D.
All of the above
Solution
Proteins serve multiple functions in the body, including energy storage, hormonal regulation, and transport of molecules.
Correct Answer: D — All of the above
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Q. Which of the following is a function of proteins?
-
A.
Energy storage
-
B.
Hormonal regulation
-
C.
Genetic information
-
D.
Cell membrane structure
Solution
Proteins play a crucial role in hormonal regulation among other functions.
Correct Answer: B — Hormonal regulation
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Q. Which of the following is a ketone?
-
A.
Propionaldehyde
-
B.
Butanal
-
C.
Acetone
-
D.
Formaldehyde
Solution
Acetone (CH3COCH3) is a ketone.
Correct Answer: C — Acetone
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Q. Which of the following is a lipid?
-
A.
Starch
-
B.
Cholesterol
-
C.
Cellulose
-
D.
Glucose
Solution
Cholesterol is a type of lipid, while starch, cellulose, and glucose are carbohydrates.
Correct Answer: B — Cholesterol
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Q. Which of the following is a method for preparing aldehydes?
-
A.
Hydration of alkynes
-
B.
Oxidation of primary alcohols
-
C.
Reduction of carboxylic acids
-
D.
Dehydration of alcohols
Solution
Aldehydes can be prepared by the oxidation of primary alcohols.
Correct Answer: B — Oxidation of primary alcohols
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Q. Which of the following is a method for preparing amines?
-
A.
Reduction of nitriles
-
B.
Hydrolysis of esters
-
C.
Dehydration of alcohols
-
D.
Oxidation of aldehydes
Solution
Amines can be prepared by the reduction of nitriles.
Correct Answer: A — Reduction of nitriles
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