Chemistry Syllabus (JEE Main)

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Q. What is the primary reason for the compressibility of gases?
  • A. High density
  • B. Low temperature
  • C. Large intermolecular spaces
  • D. Strong intermolecular forces
Q. What is the primary reason for the elevation of boiling point in a solution?
  • A. Increased molecular weight
  • B. Decreased vapor pressure
  • C. Increased solubility
  • D. Decreased temperature
Q. What is the primary reason for the formation of a precipitate in a saturated solution?
  • A. Excess solute
  • B. Temperature increase
  • C. Change in pH
  • D. Decrease in solubility product
Q. What is the primary reason for the high boiling point of water compared to other similar-sized molecules?
  • A. Hydrogen bonding
  • B. Van der Waals forces
  • C. Ionic bonding
  • D. Covalent bonding
Q. What is the primary reason for the high reactivity of alkali metals?
  • A. High electronegativity
  • B. Low ionization energy
  • C. High atomic radius
  • D. Presence of d-orbitals
Q. What is the primary reason for the high reactivity of halogens?
  • A. Low electronegativity
  • B. High ionization energy
  • C. Desire to gain one electron
  • D. Large atomic size
Q. What is the primary reason for the increase in pH when a weak acid is titrated with a strong base?
  • A. Formation of water
  • B. Neutralization of acid
  • C. Formation of a conjugate base
  • D. All of the above
Q. What is the primary reason for the increasing reactivity of alkali metals down the group?
  • A. Increasing atomic size
  • B. Decreasing ionization energy
  • C. Increasing electronegativity
  • D. Increasing metallic character
Q. What is the primary reason for the lowering of vapor pressure in a solution?
  • A. Increased temperature
  • B. Decreased surface area
  • C. Presence of solute particles
  • D. Increased molecular weight of solvent
Q. What is the primary reason for the stability of benzene?
  • A. Presence of double bonds
  • B. Resonance stabilization
  • C. High molecular weight
  • D. Hydrogen bonding
Q. What is the primary reason for the stability of phenol compared to cyclohexanol?
  • A. Inductive effect
  • B. Mesomeric effect
  • C. Steric hindrance
  • D. Hydrogen bonding
Q. What is the primary reason gases can be compressed much more than liquids or solids?
  • A. High density
  • B. Low density
  • C. Large intermolecular spaces
  • D. Strong intermolecular forces
Q. What is the primary species present in a solution of acetic acid (CH3COOH)?
  • A. CH3COO-
  • B. H+
  • C. CH3COOH
  • D. H2O
Q. What is the primary species present in a solution of sodium acetate (CH3COONa)?
  • A. CH3COO-
  • B. Na+
  • C. H+
  • D. OH-
Q. What is the primary storage form of carbohydrates in animals?
  • A. Starch
  • B. Glycogen
  • C. Cellulose
  • D. Chitin
Q. What is the primary structural component of plant cell walls?
  • A. Starch
  • B. Glycogen
  • C. Cellulose
  • D. Chitin
Q. What is the primary structure of a polymer determined by?
  • A. The arrangement of monomers
  • B. The molecular weight
  • C. The type of bonds
  • D. The color of the polymer
Q. What is the primary structure of a protein determined by?
  • A. Hydrogen bonds
  • B. Ionic bonds
  • C. Peptide bonds
  • D. Disulfide bridges
Q. What is the primary structure of a protein?
  • A. The sequence of amino acids
  • B. The folding of the polypeptide chain
  • C. The arrangement of multiple polypeptide chains
  • D. The interaction between side chains
Q. What is the primary type of bonding in diamond?
  • A. Ionic
  • B. Covalent
  • C. Metallic
  • D. Hydrogen
Q. What is the primary type of bonding in ionic compounds?
  • A. Covalent bonding
  • B. Ionic bonding
  • C. Metallic bonding
  • D. Hydrogen bonding
Q. What is the primary type of bonding in polymers?
  • A. Ionic bonding
  • B. Covalent bonding
  • C. Metallic bonding
  • D. Hydrogen bonding
Q. What is the primary type of bonding in sodium chloride (NaCl)?
  • A. Covalent
  • B. Ionic
  • C. Metallic
  • D. Hydrogen
Q. What is the primary type of reaction that alkanes undergo?
  • A. Addition
  • B. Substitution
  • C. Elimination
  • D. Condensation
Q. What is the primary use of amines in industry?
  • A. Solvents
  • B. Fertilizers
  • C. Dyes
  • D. All of the above
Q. What is the primary use of antihistamines?
  • A. To treat infections
  • B. To relieve allergy symptoms
  • C. To reduce fever
  • D. To promote sleep
Q. What is the primary use of baking soda in cooking?
  • A. Flavor enhancer
  • B. Leavening agent
  • C. Preservative
  • D. Coloring agent
Q. What is the primary use of barium sulfate?
  • A. As a contrast agent in X-ray imaging
  • B. In fireworks
  • C. As a fertilizer
  • D. In batteries
Q. What is the primary use of boron in industry?
  • A. Fertilizers
  • B. Glass production
  • C. Metallurgy
  • D. Pharmaceuticals
Q. What is the primary use of calcium in the industry?
  • A. As a reducing agent
  • B. In the production of cement
  • C. In batteries
  • D. As a fertilizer
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