Major Competitive Exams

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Q. Which protein forms the thick filaments in muscle fibers? (2020)
  • A. A. Actin
  • B. B. Myosin
  • C. C. Tropomyosin
  • D. D. Troponin
Q. Which protein is primarily responsible for muscle contraction? (2019)
  • A. Actin
  • B. Myosin
  • C. Tropomyosin
  • D. Troponin
Q. Which protocol is used to retrieve emails from a mail server? (2021)
  • A. SMTP
  • B. IMAP
  • C. FTP
  • D. HTTP
Q. Which quadrilateral has all sides equal but angles not necessarily equal? (2023)
  • A. Square
  • B. Rectangle
  • C. Rhombus
  • D. Trapezium
Q. Which quantum number can have a value of 0?
  • A. n
  • B. l
  • C. m
  • D. s
Q. Which quantum number describes the orientation of an orbital in space?
  • A. Principal quantum number
  • B. Azimuthal quantum number
  • C. Magnetic quantum number
  • D. Spin quantum number
Q. Which quantum number describes the orientation of an orbital?
  • A. Principal quantum number
  • B. Azimuthal quantum number
  • C. Magnetic quantum number
  • D. Spin quantum number
Q. Which quantum number describes the orientation of an orbital? (2020) 2020
  • A. Principal quantum number
  • B. Azimuthal quantum number
  • C. Magnetic quantum number
  • D. Spin quantum number
Q. Which quantum number describes the shape of an orbital?
  • A. Principal quantum number (n)
  • B. Azimuthal quantum number (l)
  • C. Magnetic quantum number (m_l)
  • D. Spin quantum number (m_s)
Q. Which quantum number determines the energy level of an electron in an atom?
  • A. n
  • B. l
  • C. m_l
  • D. s
Q. Which quantum number determines the orientation of an orbital in space?
  • A. n
  • B. l
  • C. m_l
  • D. m_s
Q. Which quantum number determines the orientation of an orbital?
  • A. Principal quantum number (n)
  • B. Azimuthal quantum number (l)
  • C. Magnetic quantum number (m_l)
  • D. Spin quantum number (m_s)
Q. Which quantum number determines the shape of an atomic orbital?
  • A. Principal quantum number (n)
  • B. Azimuthal quantum number (l)
  • C. Magnetic quantum number (m_l)
  • D. Spin quantum number (m_s)
Q. Which quantum number is associated with the orientation of an orbital?
  • A. Principal quantum number (n)
  • B. Azimuthal quantum number (l)
  • C. Magnetic quantum number (m_l)
  • D. Spin quantum number (m_s)
Q. Which quantum number is not allowed to be negative?
  • A. Principal quantum number (n)
  • B. Azimuthal quantum number (l)
  • C. Magnetic quantum number (m)
  • D. Spin quantum number (s)
Q. Which quantum number is not required to describe the electron in an atom? (2019)
  • A. Principal quantum number
  • B. Azimuthal quantum number
  • C. Magnetic quantum number
  • D. Color quantum number
Q. Which quarter showed the lowest overall sales across all products according to the table?
  • A. Q1
  • B. Q2
  • C. Q3
  • D. Q4
Q. Which reaction involves the addition of water to an alkene?
  • A. Hydrogenation
  • B. Hydrolysis
  • C. Hydration
  • D. Dehydration
Q. Which reaction is characteristic of alcohols? (2020)
  • A. Dehydration
  • B. Hydrogenation
  • C. Halogenation
  • D. Oxidation
Q. Which reaction is characteristic of alkenes?
  • A. Hydrogenation
  • B. Halogenation
  • C. Hydrolysis
  • D. Oxidation
Q. Which reaction is characteristic of alkynes?
  • A. Hydrogenation
  • B. Halogenation
  • C. Hydrohalogenation
  • D. All of the above
Q. Which reaction is characteristic of carboxylic acids? (2021)
  • A. Esterification
  • B. Hydrogenation
  • C. Halogenation
  • D. Dehydration
Q. Which reaction is commonly used to convert alkynes to alkenes?
  • A. Hydrogenation
  • B. Halogenation
  • C. Hydroboration
  • D. Dehydrohalogenation
Q. Which reaction is used to convert alkenes to alkanes?
  • A. Hydrogenation
  • B. Halogenation
  • C. Hydrolysis
  • D. Dehydrogenation
Q. Which reaction is used to prepare alkynes from alkenes?
  • A. Hydrogenation
  • B. Dehydrohalogenation
  • C. Hydrohalogenation
  • D. Halogenation
Q. Which reaction is used to prepare amines from alkyl halides? (2020)
  • A. Nitration
  • B. Hydrogenation
  • C. Nucleophilic substitution
  • D. Electrophilic substitution
Q. Which reaction is used to prepare amines from alkyl halides? (2020) 2020
  • A. Hydrogenation
  • B. Nucleophilic substitution
  • C. Electrophilic substitution
  • D. Dehydrohalogenation
Q. Which reaction is used to prepare amines from nitriles? (2020)
  • A. Hydrogenation
  • B. Reduction
  • C. Alkylation
  • D. Dehydration
Q. Which reaction is used to prepare carboxylic acids from alcohols? (2020)
  • A. Oxidation
  • B. Reduction
  • C. Hydrolysis
  • D. Dehydration
Q. Which reaction is used to prepare primary amines from alkyl halides? (2022)
  • A. Reduction
  • B. Hydrolysis
  • C. Nucleophilic substitution
  • D. Dehydrohalogenation
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