Major Competitive Exams

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Q. What is the main product of the dehydration of ethanol?
  • A. Ethylene
  • B. Acetaldehyde
  • C. Ethane
  • D. Diethyl ether
Q. What is the main product of the electrolysis of water?
  • A. Hydrogen gas
  • B. Oxygen gas
  • C. Hydrochloric acid
  • D. Hydrogen peroxide
Q. What is the main product of the fusion of hydrogen nuclei? (2022)
  • A. Helium
  • B. Carbon
  • C. Oxygen
  • D. Nitrogen
Q. What is the main product of the hydrogenation of benzene?
  • A. Cyclohexane
  • B. Toluene
  • C. Phenol
  • D. Benzaldehyde
Q. What is the main product of the hydrolysis of an ester?
  • A. Alcohol
  • B. Carboxylic acid
  • C. Alkene
  • D. Ketone
Q. What is the main product of the nitration of benzene?
  • A. Nitrobenzene
  • B. Benzene-1,2-diol
  • C. Benzaldehyde
  • D. Benzyl alcohol
Q. What is the main product of the oxidation of a primary alcohol?
  • A. Aldehyde
  • B. Ketone
  • C. Carboxylic acid
  • D. Alcohol
Q. What is the main product of the oxidation of ethanol?
  • A. Acetic acid
  • B. Formic acid
  • C. Butanoic acid
  • D. Propanoic acid
Q. What is the main product of the reaction between aluminum and hydrochloric acid? (2023)
  • A. AlCl3
  • B. H2
  • C. Al(OH)3
  • D. Al2Cl6
Q. What is the main product of the reaction between an acid and a base? (2019)
  • A. Salt
  • B. Water
  • C. Hydrogen gas
  • D. Carbon dioxide
Q. What is the main product of the reaction between an acid and a carbonate? (2019)
  • A. Salt
  • B. Water
  • C. Carbon dioxide
  • D. All of the above
Q. What is the main product of the reaction between an alcohol and a carboxylic acid?
  • A. Ester
  • B. Ether
  • C. Aldehyde
  • D. Ketone
Q. What is the main product of the reaction between ethene and bromine?
  • A. Bromobutane
  • B. 1,2-Dibromoethane
  • C. Bromoethane
  • D. Ethyl bromide
Q. What is the main product of the reaction between hydrogen and oxygen?
  • A. Ozone
  • B. Water
  • C. Hydrogen peroxide
  • D. Hydrochloric acid
Q. What is the main product of the reaction between sodium and chlorine?
  • A. NaCl
  • B. NaCl2
  • C. Na2Cl
  • D. Na2Cl2
Q. What is the main product of the reaction of 1-bromo-2-methylpropane with KOH in ethanol? (2020)
  • A. 2-methylpropene
  • B. 2-methylpropan-1-ol
  • C. 1-bromo-2-methylpropane
  • D. 2-bromo-2-methylpropane
Q. What is the main product of the reaction of 1-chloropropane with magnesium in dry ether?
  • A. Propane
  • B. Grignard reagent
  • C. Propyl chloride
  • D. Magnesium chloride
Q. What is the main product of the reaction of benzene with bromine in the presence of FeBr3?
  • A. Bromobenzene
  • B. Benzyl bromide
  • C. Bromobenzyl alcohol
  • D. Benzene remains unchanged
Q. What is the main product of the reaction of ethene with ozone followed by zinc reduction?
  • A. Acetaldehyde
  • B. Ethylene glycol
  • C. Acetic acid
  • D. Ethane
Q. What is the main product of the thermal decomposition of ammonium dichromate? (2023)
  • A. Cr2O3
  • B. CrO3
  • C. Cr
  • D. NH3
Q. What is the main product of the thermal decomposition of calcium carbonate (CaCO3)? (2019)
  • A. Calcium oxide (CaO)
  • B. Carbon dioxide (CO2)
  • C. Calcium hydroxide (Ca(OH)2)
  • D. Calcium carbide (CaC2)
Q. What is the main product of the thermal decomposition of calcium carbonate?
  • A. Calcium oxide
  • B. Calcium hydroxide
  • C. Carbon dioxide
  • D. Calcium bicarbonate
Q. What is the main product when 1-bromobutane reacts with sodium hydroxide in ethanol? (2021)
  • A. Butanol
  • B. Butene
  • C. Sodium bromide
  • D. Butyric acid
Q. What is the main product when 1-bromopropane is treated with alcoholic KOH? (2021)
  • A. Propene
  • B. 1-propanol
  • C. 2-propanol
  • D. Bromopropane
Q. What is the main product when 1-bromopropane is treated with aqueous KOH?
  • A. Propene
  • B. 1-propanol
  • C. 2-propanol
  • D. No reaction
Q. What is the main product when 1-bromopropane is treated with magnesium in dry ether? (2019)
  • A. Propane
  • B. Grignard reagent
  • C. Bromopropane
  • D. Propyl alcohol
Q. What is the main product when 1-bromopropane reacts with magnesium in dry ether?
  • A. Propylmagnesium bromide
  • B. Propane
  • C. Magnesium bromide
  • D. Propan-1-ol
Q. What is the main product when 1-butanol is oxidized?
  • A. Butanal
  • B. Butanoic acid
  • C. Butene
  • D. Butyne
Q. What is the main product when 1-butene undergoes hydroboration-oxidation?
  • A. Butanol
  • B. Butanal
  • C. Butyric acid
  • D. Butene
Q. What is the main product when 1-butyne is treated with HBr?
  • A. 1-bromobutane
  • B. 2-bromobutane
  • C. 1,2-dibromobutane
  • D. No reaction
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