Major Competitive Exams

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Q. What is the primary product when an acid reacts with a metal carbonate?
  • A. Salt
  • B. Water
  • C. Carbon dioxide
  • D. All of the above
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 calcium reacts with oxygen? (2022)
  • A. Calcium oxide
  • B. Calcium hydroxide
  • C. Calcium carbonate
  • D. Calcium peroxide
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 'graph theory' in modern mathematics?
  • A. To analyze the relationships between geometric shapes
  • B. To study the properties of numbers
  • C. To model pairwise relationships between objects
  • D. To solve algebraic equations
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 partnership agreement?
  • A. To outline the tax obligations of the partners
  • B. To define the terms of the partnership and protect the interests of partners
  • C. To establish a marketing strategy
  • D. To determine the location of the business
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 a set in mathematical contexts?
  • A. To increase the number of elements in the set.
  • B. To ensure all elements are unique.
  • C. To filter elements based on specific criteria.
  • D. To create a larger set.
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 creating a hybrid set? (2023)
  • A. To simplify complex data.
  • B. To combine different types of data for analysis.
  • C. To eliminate redundancy in data.
  • D. To categorize data into distinct groups.
Q. What is the primary purpose of creating hybrid sets in mathematical contexts?
  • A. To simplify complex data.
  • B. To analyze relationships between different sets.
  • C. To eliminate redundancy in data.
  • D. To create larger sets from smaller ones.
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 petals in a flower? (2023)
  • A. To produce seeds
  • B. To attract pollinators
  • C. To support the flower
  • D. To protect the ovary
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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