Chemistry Syllabus (JEE Main)

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Q. What happens to the pressure of a gas if the volume is halved at constant temperature?
  • A. It doubles
  • B. It halves
  • C. It remains the same
  • D. It quadruples
Q. What happens to the pressure of a gas if the volume is halved while the temperature remains constant?
  • A. Pressure doubles
  • B. Pressure halves
  • C. Pressure remains the same
  • D. Pressure quadruples
Q. What happens to the vapor pressure of a solution as the concentration of a non-volatile solute increases?
  • A. It increases.
  • B. It decreases.
  • C. It remains constant.
  • D. It fluctuates.
Q. What happens to the vapor pressure of a solvent when a non-volatile solute is added?
  • A. It increases
  • B. It decreases
  • C. It remains the same
  • D. It fluctuates
Q. What happens to the vapor pressure of a solvent when a volatile solute is added?
  • A. It increases.
  • B. It decreases.
  • C. It remains the same.
  • D. It becomes zero.
Q. What happens to the volume of a gas if the temperature is increased at constant pressure?
  • A. It decreases
  • B. It increases
  • C. It remains the same
  • D. It becomes zero
Q. What happens to the volume of a gas when the pressure is increased at constant temperature?
  • A. Increases
  • B. Decreases
  • C. Remains the same
  • D. Becomes zero
Q. What is denaturation of proteins?
  • A. The process of protein synthesis
  • B. The loss of protein function due to structural changes
  • C. The formation of peptide bonds
  • D. The folding of proteins into their functional shape
Q. What is Raoult's Law primarily used to describe?
  • A. The behavior of ideal gases
  • B. The vapor pressure of solutions
  • C. The boiling point elevation
  • D. The freezing point depression
Q. What is Raoult's Law primarily used to determine?
  • A. Vapor pressure of a solution
  • B. Boiling point elevation
  • C. Freezing point depression
  • D. Molarity of a solution
Q. What is the atomic number of the element with the symbol 'Na'?
  • A. 11
  • B. 12
  • C. 13
  • D. 14
Q. What is the basic building block of proteins?
  • A. Nucleotides
  • B. Fatty acids
  • C. Amino acids
  • D. Monosaccharides
Q. What is the basic structural unit of proteins?
  • A. Nucleotide
  • B. Monosaccharide
  • C. Amino acid
  • D. Fatty acid
Q. What is the basic unit of nucleic acids?
  • A. Amino acid
  • B. Nucleotide
  • C. Monosaccharide
  • D. Fatty acid
Q. What is the basic unit of proteins?
  • A. Nucleotide
  • B. Monosaccharide
  • C. Amino acid
  • D. Fatty acid
Q. What is the boiling point elevation of a solution containing 1 mol of NaCl in 1 kg of water? (K_b for water = 0.512 °C kg/mol)
  • A. 0.512 °C
  • B. 1.024 °C
  • C. 1.536 °C
  • D. 2.048 °C
Q. What is the boiling point of a liquid?
  • A. The temperature at which vapor pressure equals atmospheric pressure
  • B. The temperature at which a liquid freezes
  • C. The temperature at which a liquid evaporates
  • D. The temperature at which a liquid condenses
Q. What is the boiling point of a solution containing 0.5 mol of KCl in 1 kg of water? (K_b for water = 0.512 °C kg/mol)
  • A. 1.024 °C
  • B. 0.512 °C
  • C. 1.536 °C
  • D. 2.048 °C
Q. What is the boiling point trend among alcohols, ethers, and alkanes?
  • A. Alcohols > Ethers > Alkanes
  • B. Ethers > Alcohols > Alkanes
  • C. Alkanes > Ethers > Alcohols
  • D. All have the same boiling point
Q. What is the bond angle around the carbon atoms in an alkyne?
  • A. 120 degrees
  • B. 180 degrees
  • C. 109.5 degrees
  • D. 90 degrees
Q. What is the bond angle in a methane (CH4) molecule?
  • A. 90 degrees
  • B. 109.5 degrees
  • C. 120 degrees
  • D. 180 degrees
Q. What is the bond angle in a tetrahedral molecule?
  • A. 90 degrees
  • B. 120 degrees
  • C. 109.5 degrees
  • D. 180 degrees
Q. What is the bond angle in a trigonal planar molecule?
  • A. 120 degrees
  • B. 109.5 degrees
  • C. 180 degrees
  • D. 90 degrees
Q. What is the bond angle in a water molecule (H2O) according to VSEPR theory?
  • A. 120 degrees
  • B. 109.5 degrees
  • C. 104.5 degrees
  • D. 90 degrees
Q. What is the bond angle in a water molecule (H2O)?
  • A. 120 degrees
  • B. 109.5 degrees
  • C. 104.5 degrees
  • D. 180 degrees
Q. What is the bond angle in water (H2O)?
  • A. 90 degrees
  • B. 104.5 degrees
  • C. 120 degrees
  • D. 180 degrees
Q. What is the bond order of the CO molecule?
  • A. 1
  • B. 2
  • C. 3
  • D. 4
Q. What is the bond order of the ion O2-?
  • A. 1
  • B. 2
  • C. 3
  • D. 4
Q. What is the bond order of the molecule B2 according to molecular orbital theory?
  • A. 0
  • B. 1
  • C. 2
  • D. 3
Q. What is the bond order of the molecule B2?
  • A. 1
  • B. 2
  • C. 3
  • D. 0
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