Major Competitive Exams

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Q. What is the primary product of the reaction between hydrogen and chlorine? (2019)
  • A. Hydrochloric acid
  • B. Hydrogen chloride
  • C. Chlorine gas
  • D. Water
Q. What is the primary product of the thermal decomposition of calcium carbonate? (2019)
  • A. Calcium oxide
  • B. Calcium hydroxide
  • C. Calcium bicarbonate
  • D. Calcium chloride
Q. What is the primary product when 1-bromo-2-methylpropane reacts with KOH in ethanol?
  • A. 2-methylpropene
  • B. 1-methylpropene
  • C. 2-bromopropane
  • D. no reaction
Q. What is the primary product when 1-chloropropane reacts with potassium tert-butoxide?
  • A. Propene
  • B. 2-methylpropane
  • C. 1-butene
  • D. No reaction
Q. What is the primary product when a carboxylic acid is reduced with lithium aluminum hydride (LiAlH4)?
  • A. Alcohol
  • B. Aldehyde
  • C. Ketone
  • D. Ester
Q. What is the primary product when a carboxylic acid reacts with thionyl chloride (SOCl2)?
  • A. Acid chloride
  • B. Ester
  • C. Alcohol
  • D. Aldehyde
Q. What is the primary product when aluminum reacts with hydrochloric acid? (2020)
  • A. AlCl3
  • B. H2
  • C. Al(OH)3
  • D. Al2Cl6
Q. What is the primary product when ammonia reacts with an alkyl halide?
  • A. Amine
  • B. Amide
  • C. Alkane
  • D. Alcohol
Q. What is the primary product when an alcohol is oxidized?
  • A. Alkane
  • B. Aldehyde
  • C. Ketone
  • D. Carboxylic acid
Q. What is the primary product when chlorobenzene is treated with sodium hydroxide at high temperature?
  • A. Phenol
  • B. Benzene
  • C. Chlorobenzene
  • D. Sodium chloride
Q. What is the primary product when ethene reacts with water in the presence of an acid?
  • A. Ethanol
  • B. Ethane
  • C. Ethanoic acid
  • D. Ethylene glycol
Q. What is the primary product when hydrogen reacts with oxygen?
  • A. Water
  • B. Hydrogen peroxide
  • C. Ozone
  • D. Hydroxyl radical
Q. What is the primary product when lithium reacts with nitrogen? (2022)
  • A. Lithium nitride
  • B. Lithium oxide
  • C. Lithium hydroxide
  • D. Lithium carbonate
Q. What is the primary product when magnesium reacts with dilute hydrochloric acid?
  • A. Magnesium chloride
  • B. Hydrogen gas
  • C. Magnesium hydroxide
  • D. Magnesium oxide
Q. What is the primary product when potassium permanganate (KMnO4) is reduced in acidic medium? (2019)
  • A. MnO2
  • B. Mn2+
  • C. MnO4-
  • D. KMnO4
Q. What is the primary product when sodium bicarbonate reacts with hydrochloric acid?
  • A. Sodium chloride
  • B. Carbon dioxide
  • C. Water
  • D. All of the above
Q. What is the primary purpose of a demodulator in a communication system?
  • A. To amplify the signal
  • B. To convert the signal back to its original form
  • C. To filter the noise
  • D. To encode the signal
Q. What is the primary purpose of a firewall? (2023)
  • A. To speed up internet connection
  • B. To protect against unauthorized access
  • C. To store data
  • D. To manage network traffic
Q. What is the primary purpose of a modulator in a communication system?
  • A. To amplify the signal
  • B. To convert digital signals to analog
  • C. To filter noise
  • D. To encode information
Q. What is the primary purpose of a national budget? (2023)
  • A. To control inflation
  • B. To allocate resources
  • C. To increase GDP
  • D. To reduce taxes
Q. What is the primary purpose of a web browser? (2022)
  • A. To send emails
  • B. To browse the internet
  • C. To create websites
  • D. To store files
Q. What is the primary purpose of an operating system?
  • A. To manage hardware resources
  • B. To create documents
  • C. To browse the internet
  • D. To play games
Q. What is the primary purpose of applying constraints to sets in mathematical contexts?
  • A. To increase the number of elements in a set.
  • B. To simplify the analysis of the set.
  • C. To ensure all elements are unique.
  • D. To define a specific subset of elements.
Q. What is the primary purpose of constraint-based distribution in physics? (2021)
  • A. To maximize energy efficiency
  • B. To ensure equilibrium in a system
  • C. To minimize the total mass
  • D. To optimize speed
Q. What is the primary purpose of defining constraints in a set?
  • A. To limit the number of elements in the set.
  • B. To clarify the properties of the elements in the set.
  • C. To ensure all elements are unique.
  • D. To establish relationships between different sets.
Q. What is the primary purpose of establishing roles within a team?
  • A. To limit participation
  • B. To clarify responsibilities
  • C. To create hierarchy
  • D. To increase competition
Q. What is the primary purpose of modulation in communication systems?
  • A. To increase the bandwidth of the signal
  • B. To reduce noise in the signal
  • C. To allow the transmission of signals over long distances
  • D. To convert digital signals to analog signals
Q. What is the primary purpose of reading comprehension strategies? (2021)
  • A. To memorize information
  • B. To enhance understanding of the text
  • C. To improve writing skills
  • D. To increase reading speed
Q. What is the primary purpose of reproduction in organisms? (2020)
  • A. To increase genetic diversity
  • B. To maintain homeostasis
  • C. To produce energy
  • D. To ensure survival of the species
Q. What is the primary purpose of reproductive health education? (2020)
  • A. To promote early marriage
  • B. To prevent sexually transmitted diseases
  • C. To encourage multiple partners
  • D. To discourage family planning
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