Chemistry (School & UG)

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The Chemistry (School & UG) category covers the fundamental to advanced concepts of Chemistry, structured to support Class 11–12 students, competitive exam aspirants, and undergraduate learners. The content emphasizes conceptual clarity, problem-solving skills, and strong alignment with NCERT and university syllabi.

In this category, you will study:

  • Physical Chemistry – atomic structure, thermodynamics, chemical kinetics, equilibrium, electrochemistry, and solutions

  • Organic Chemistry – basic principles, reaction mechanisms, hydrocarbons, functional groups, biomolecules, and polymers

  • Inorganic Chemistry – periodic trends, chemical bonding, coordination compounds, metallurgy, and s-, p-, d-, and f-block elements

  • Numerical problem-solving – formula-based calculations, mole concept, and graph-based questions

  • Reaction mechanisms and derivations with step-by-step explanations

  • Comparisons, trends, and exceptions important for exams

  • NCERT-based theory, supported by diagrams, tables, MCQs, assertion–reason questions, numericals, and PYQs

The content is designed to build strong foundations, improve analytical and quantitative skills, and prepare students for school examinations, competitive exams, and undergraduate assessments.

Develop a clear, logical, and application-oriented understanding of Chemistry to excel academically and confidently tackle problem-based and conceptual questions at both school and UG levels.

Q. What is the principal quantum number for the outermost electrons in a chlorine atom?
  • A. 1
  • B. 2
  • C. 3
  • D. 4
Q. What is the principal quantum number for the outermost electrons in a potassium atom?
  • A. 1
  • B. 2
  • C. 3
  • D. 4
Q. What is the principal quantum number for the outermost electrons in a sodium atom?
  • A. 1
  • B. 2
  • C. 3
  • D. 4
Q. What is the principal quantum number for the outermost electrons in potassium (K)?
  • A. 3
  • B. 4
  • C. 5
  • D. 2
Q. What is the principal quantum number for the outermost electrons in sodium (Na)?
  • A. 1
  • B. 2
  • C. 3
  • D. 4
Q. What is the principal quantum number of the outermost electrons in a chlorine atom?
  • A. 2
  • B. 3
  • C. 4
  • D. 5
Q. What is the principle behind electrophoresis in qualitative analysis?
  • A. Separation based on boiling point
  • B. Separation based on charge and size
  • C. Separation based on solubility
  • D. Separation based on density
Q. What is the principle behind quantum mechanics in chemistry?
  • A. Particles have wave-like properties
  • B. Energy is quantized
  • C. Both A and B
  • D. None of the above
Q. What is the principle behind the use of chromatography for qualitative analysis?
  • A. Separation based on charge
  • B. Separation based on size
  • C. Separation based on solubility
  • D. Separation based on boiling point
Q. What is the principle behind using UV-Vis spectroscopy for qualitative analysis?
  • A. It measures the mass of ions
  • B. It detects the color of the solution
  • C. It identifies functional groups based on absorbance
  • D. It separates ions based on charge
Q. What is the product of the complete combustion of 2-butyne?
  • A. C4H10 + CO2 + H2O
  • B. C4H10 + CO + H2O
  • C. CO2 + H2O
  • D. C4H8 + O2
Q. What is the product of the complete combustion of ethyne (acetylene)?
  • A. CO2 and H2O
  • B. C and H2O
  • C. CO and H2O
  • D. C2H4
Q. What is the product of the complete combustion of ethyne (C2H2)?
  • A. C2H4 + H2O
  • B. CO2 + H2O
  • C. C2H6 + O2
  • D. C2H2 + O2
Q. What is the product of the dehydration of an alcohol?
  • A. Alkene
  • B. Alkane
  • C. Ether
  • D. Aldehyde
Q. What is the product of the E1 elimination of 2-bromo-2-methylpropane?
  • A. Isobutylene
  • B. Butane
  • C. 2-methylpropene
  • D. Cyclobutane
Q. What is the product of the E2 elimination of 2-bromobutane?
  • A. Butene
  • B. 2-butene
  • C. 1-butene
  • D. Butyne
Q. What is the product of the electrophilic substitution of toluene with sulfuric acid?
  • A. Toluene sulfonic acid
  • B. Benzene sulfonic acid
  • C. Methyl sulfonic acid
  • D. Phenol
Q. What is the product of the elimination reaction of 2-bromobutane with KOH in ethanol?
  • A. But-1-ene
  • B. But-2-ene
  • C. But-3-ene
  • D. Butane
Q. What is the product of the Friedel-Crafts acylation of benzene with acetyl chloride (CH3COCl)?
  • A. Acetophenone
  • B. Benzophenone
  • C. Benzyl acetate
  • D. Phenyl acetate
Q. What is the product of the Friedel-Crafts acylation of benzene with acetyl chloride?
  • A. Acetophenone
  • B. Benzophenone
  • C. Benzyl acetate
  • D. Phenyl acetate
Q. What is the product of the Friedel-Crafts acylation of benzene with acetyl chloride (CH3COCl) in the presence of AlCl3?
  • A. Acetophenone
  • B. Benzophenone
  • C. Benzyl acetate
  • D. Phenyl acetate
Q. What is the product of the Friedel-Crafts acylation of benzene with acetyl chloride in the presence of AlCl3?
  • A. Acetophenone
  • B. Benzophenone
  • C. Benzyl acetate
  • D. Phenyl acetate
Q. What is the product of the Friedel-Crafts alkylation of benzene with 1-bromopropane in the presence of AlCl3?
  • A. Propylbenzene
  • B. Isopropylbenzene
  • C. Benzyl bromide
  • D. Benzene
Q. What is the product of the hydrogenation of 1-hexene?
  • A. Hexane
  • B. Cyclohexane
  • C. 1-hexanol
  • D. 2-hexanol
Q. What is the product of the hydrogenation of 2-pentyne?
  • A. pentane
  • B. 2-pentene
  • C. 1-pentene
  • D. 3-pentene
Q. What is the product of the hydrolysis of an amide?
  • A. Carboxylic acid and amine
  • B. Alcohol and acid
  • C. Alkene and water
  • D. Ketone and ammonia
Q. What is the product of the hydrolysis of an ester?
  • A. Alcohol and carboxylic acid
  • B. Alkene and water
  • C. Ketone and hydrogen
  • D. Aldehyde and carbon dioxide
Q. What is the product of the hydrolysis of chlorobenzene?
  • A. Phenol
  • B. Benzene
  • C. Chlorobenzene
  • D. Benzyl alcohol
Q. What is the product of the reaction between 1-butyne and H2 in the presence of a catalyst?
  • A. 1-butene
  • B. 2-butene
  • C. Butane
  • D. Cyclobutane
Q. What is the product of the reaction between 1-pentene and HBr?
  • A. 1-bromopentane
  • B. 2-bromopentane
  • C. 3-bromopentane
  • D. 4-bromopentane
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