JEE Main

Q. Which of the following sets of quantum numbers is not allowed?
  • A. n=2, l=1, m_l=0
  • B. n=3, l=2, m_l=2
  • C. n=1, l=0, m_l=1
  • D. n=4, l=3, m_l=-3
Q. Which of the following sets of quantum numbers is not possible?
  • A. n=3, l=2, m_l=1
  • B. n=2, l=1, m_l=2
  • C. n=4, l=3, m_l=0
  • D. n=1, l=0, m_l=0
Q. Which of the following shapes has the largest moment of inertia for the same mass and radius?
  • A. Solid sphere
  • B. Hollow sphere
  • C. Solid cylinder
  • D. Hollow cylinder
Q. Which of the following solutions has the highest boiling point?
  • A. 0.1 M NaCl
  • B. 0.1 M KCl
  • C. 0.1 M CaCl2
  • D. 0.1 M glucose
Q. Which of the following solutions will have the highest boiling point?
  • A. 0.1 M NaCl
  • B. 0.1 M KCl
  • C. 0.1 M glucose
  • D. 0.1 M MgCl2
Q. Which of the following solutions will have the lowest freezing point?
  • A. 0.1 M NaCl
  • B. 0.1 M KBr
  • C. 0.1 M MgCl2
  • D. 0.1 M glucose
Q. Which of the following solutions will have the lowest vapor pressure?
  • A. 0.1 M NaCl
  • B. 0.1 M KBr
  • C. 0.1 M MgCl2
  • D. 0.1 M glucose
Q. Which of the following species exhibits sp3d hybridization?
  • A. SF4
  • B. XeF2
  • C. NH3
  • D. C2H4
Q. Which of the following species has a bond order of 1?
  • A. N2
  • B. O2
  • C. F2
  • D. C2
Q. Which of the following species has a central atom with sp3 hybridization?
  • A. CCl4
  • B. CO2
  • C. BF3
  • D. H2O
Q. Which of the following species has a linear geometry due to hybridization?
  • A. H2O
  • B. CO2
  • C. NH3
  • D. CH4
Q. Which of the following species has a linear molecular geometry?
  • A. BeCl2
  • B. NH3
  • C. H2O
  • D. CH3Cl
Q. Which of the following species has a linear molecular shape?
  • A. BeCl2
  • B. SF6
  • C. NH3
  • D. H2O
Q. Which of the following species has a tetrahedral shape?
  • A. CH4
  • B. C2H4
  • C. NH3
  • D. H2O
Q. Which of the following species has a trigonal bipyramidal geometry?
  • A. PCl5
  • B. BF3
  • C. H2O
  • D. NH4+
Q. Which of the following species has sp2 hybridization?
  • A. C2H2
  • B. BF3
  • C. C2H4
  • D. CH4
Q. Which of the following species has the highest bond order?
  • A. O2+
  • B. O2
  • C. O2-
  • D. O2 2-
Q. Which of the following species is reduced in the reaction 2MnO4- + 5C2O4^2- + 16H+ → 2Mn^2+ + 10CO2 + 8H2O?
  • A. MnO4-
  • B. C2O4^2-
  • C. H+
  • D. CO2
Q. Which of the following statements about a convex lens is true?
  • A. It can only produce real images.
  • B. It can only produce virtual images.
  • C. It can produce both real and virtual images.
  • D. It has a negative focal length.
Q. Which of the following statements about a potentiometer is true?
  • A. It can only measure AC voltages.
  • B. It requires a constant current for accurate measurements.
  • C. It can measure both AC and DC voltages.
  • D. It is only used in laboratory settings.
Q. Which of the following statements about alcohols is true?
  • A. They are always soluble in water.
  • B. They have higher boiling points than alkanes.
  • C. They cannot form hydrogen bonds.
  • D. They are less dense than water.
Q. Which of the following statements about alkanes is true?
  • A. They are highly reactive.
  • B. They are saturated hydrocarbons.
  • C. They contain double bonds.
  • D. They are polar molecules.
Q. Which of the following statements about alkenes is true?
  • A. They are saturated hydrocarbons.
  • B. They can undergo polymerization.
  • C. They do not react with electrophiles.
  • D. They have a higher boiling point than alkanes.
Q. Which of the following statements about alkynes is incorrect?
  • A. They are unsaturated hydrocarbons.
  • B. They contain at least one triple bond.
  • C. They are more reactive than alkenes.
  • D. They have a higher boiling point than alkenes.
Q. Which of the following statements about alkynes is true?
  • A. They are less acidic than alkenes.
  • B. They can undergo polymerization.
  • C. They have a higher boiling point than alkenes.
  • D. They are more stable than alkenes.
Q. Which of the following statements about amines is incorrect?
  • A. Amines are basic in nature.
  • B. Amines can form salts with acids.
  • C. Amines have higher boiling points than alcohols.
  • D. Amines can act as nucleophiles.
Q. Which of the following statements about aromatic amines is true?
  • A. They are more basic than aliphatic amines
  • B. They are less basic than aliphatic amines
  • C. They do not react with acids
  • D. They are neutral compounds
Q. Which of the following statements about aromatic compounds is true?
  • A. They are always colorless
  • B. They have a sweet smell
  • C. They are non-toxic
  • D. They can be carcinogenic
Q. Which of the following statements about buoyancy is true?
  • A. Buoyant force acts downward
  • B. Buoyant force is equal to the weight of the fluid displaced
  • C. Buoyant force depends on the shape of the object
  • D. Buoyant force is always equal to the weight of the object
Q. Which of the following statements about carboxylic acids is true?
  • A. They are always soluble in water
  • B. They have higher boiling points than alcohols
  • C. They can form hydrogen bonds
  • D. All of the above
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