Chemistry (School & UG)

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Q. Which of the following is a key advantage of using automated titration systems?
  • A. Increased manual labor
  • B. Higher precision and accuracy
  • C. Lower cost of reagents
  • D. Reduced sample size
Q. Which of the following is a Lewis acid?
  • A. BF3
  • B. NH3
  • C. H2O
  • D. NaOH
Q. Which of the following is a meso compound?
  • A. 2,3-butanediol
  • B. 2,3-dimethylbutane
  • C. 1,2-dichloropropane
  • D. 3-methyl-2-pentanol
Q. Which of the following is a meta-directing group in electrophilic aromatic substitution?
  • A. –NO2
  • B. –OH
  • C. –CH3
  • D. –Cl
Q. Which of the following is a method for the preparation of aromatic amines?
  • A. Reduction of nitro compounds
  • B. Hydrolysis of nitriles
  • C. Alkylation of aniline
  • D. Dehydration of amides
Q. Which of the following is a phenol?
  • A. C6H5OH
  • B. C2H5OH
  • C. C3H7OH
  • D. C4H9OH
Q. Which of the following is a primary battery?
  • A. Lead-acid battery
  • B. Nickel-cadmium battery
  • C. Alkaline battery
  • D. Lithium-ion battery
Q. Which of the following is a primary factor affecting the rate of an electrochemical reaction?
  • A. Temperature
  • B. Pressure
  • C. Concentration
  • D. All of the above
Q. Which of the following is a property of acids in aqueous solution?
  • A. Bitter taste
  • B. Slippery feel
  • C. Conduct electricity
  • D. Form precipitates
Q. Which of the following is a property of acids?
  • A. Bitter taste
  • B. Slippery feel
  • C. Sour taste
  • D. Conduct electricity only in solid state
Q. Which of the following is a property of d-block elements?
  • A. Forming ionic bonds only
  • B. High melting and boiling points
  • C. Always being paramagnetic
  • D. Being non-metals
Q. Which of the following is a real-world application of alkenes?
  • A. Fuel production
  • B. Plastic manufacturing
  • C. Food preservation
  • D. Medicinal chemistry
Q. Which of the following is a real-world application of electrochemistry?
  • A. Photosynthesis in plants.
  • B. Corrosion prevention techniques.
  • C. Thermal energy storage.
  • D. Mechanical work in engines.
Q. Which of the following is a real-world application of enthalpy calculations?
  • A. Designing refrigeration systems
  • B. Calculating the pH of solutions
  • C. Determining reaction rates
  • D. Measuring electrical conductivity
Q. Which of the following is a real-world application of the ideal gas law?
  • A. Calculating the pressure in a tire
  • B. Determining the boiling point of water
  • C. Measuring the density of solids
  • D. Predicting reaction rates
Q. Which of the following is a reducing agent?
  • A. H2O2
  • B. H2
  • C. HCl
  • D. H2SO4
Q. Which of the following is a salt formed from a strong acid and a weak base?
  • A. NaCl
  • B. NH4Cl
  • C. K2SO4
  • D. CaCO3
Q. Which of the following is a strong acid formed from hydrogen?
  • A. H2O
  • B. HCl
  • C. H2S
  • D. CH4
Q. Which of the following is a strong acid that contains hydrogen?
  • A. H2O
  • B. H2SO4
  • C. NaOH
  • D. NH3
Q. Which of the following is a strong acid used in metallurgy?
  • A. Phosphoric acid
  • B. Hydrochloric acid
  • C. Carbonic acid
  • D. Citric acid
Q. Which of the following is a strong base commonly used in household cleaning products?
  • A. Sodium bicarbonate
  • B. Ammonium hydroxide
  • C. Sodium hydroxide
  • D. Calcium carbonate
Q. Which of the following is a strong field ligand?
  • A. I-
  • B. Cl-
  • C. CN-
  • D. H2O
Q. Which of the following is a strong nucleophile that can participate in an SN2 reaction?
  • A. Water
  • B. Ethanol
  • C. Sodium hydroxide
  • D. Acetic acid
Q. Which of the following is a weak acid?
  • A. HCl
  • B. H2SO4
  • C. CH3COOH
  • D. HNO3
Q. Which of the following is an example of a functional group isomer?
  • A. Butanol and ethyl methyl ether
  • B. Hexane and cyclohexane
  • C. 1-butanol and 2-butanol
  • D. Acetic acid and methyl acetate
Q. Which of the following is an example of a physical adsorption process?
  • A. Catalytic cracking
  • B. Gas chromatography
  • C. Ion exchange
  • D. Covalent modification
Q. Which of the following is an example of enantiomers?
  • A. D-glucose and L-glucose
  • B. cis-2-butene and trans-2-butene
  • C. 1-butanol and 2-butanol
  • D. acetone and propan-2-one
Q. Which of the following is NOT a characteristic of Werner's theory?
  • A. It describes the bonding in coordination compounds
  • B. It predicts the existence of isomers
  • C. It is based solely on empirical observations
  • D. It categorizes ligands as primary and secondary
Q. Which of the following is NOT a colligative property?
  • A. Osmotic pressure
  • B. Vapor pressure lowering
  • C. Boiling point elevation
  • D. Density
Q. Which of the following is NOT a common application of IR spectroscopy?
  • A. Identifying functional groups
  • B. Determining molecular weight
  • C. Studying molecular vibrations
  • D. Analyzing chemical bonds
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