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 main functional group in alkenes?
  • A. Alcohol
  • B. Aldehyde
  • C. Alkene
  • D. Alkyne
Q. What is the main functional group present in acetic acid?
  • A. Alcohol
  • B. Aldehyde
  • C. Carboxylic acid
  • D. Ketone
Q. What is the main functional group present in alkenes?
  • A. Alcohol
  • B. Aldehyde
  • C. Alkene
  • D. Alkyne
Q. What is the main functional group present in amines?
  • A. Hydroxyl group
  • B. Carboxyl group
  • C. Amino group
  • D. Carbonyl group
Q. What is the main mechanism for the reaction of 1-bromobutane with sodium hydroxide in ethanol?
  • A. SN1
  • B. SN2
  • C. E1
  • D. E2
Q. What is the main mechanism for the reaction of 1-bromopropane with sodium hydroxide in ethanol?
  • A. SN1
  • B. SN2
  • C. E1
  • D. E2
Q. What is the main mechanism for the reaction of 2-bromobutane with sodium hydroxide in ethanol?
  • A. SN1
  • B. SN2
  • C. E1
  • D. E2
Q. What is the main mechanism of the reaction between 1-bromopropane and sodium hydroxide in ethanol?
  • A. SN1
  • B. SN2
  • C. E1
  • D. E2
Q. What is the main mechanism of the reaction between an alkyl halide and a nucleophile in a bimolecular nucleophilic substitution (SN2) reaction?
  • A. Formation of a carbocation
  • B. Direct attack of the nucleophile
  • C. Formation of a cyclic intermediate
  • D. Elimination of a leaving group
Q. What is the main principle behind the use of UV-Vis spectroscopy in qualitative analysis?
  • A. It measures the mass of a sample
  • B. It detects the presence of specific ions based on their absorbance
  • C. It separates components based on their charge
  • D. It identifies compounds based on their melting points
Q. What is the main product of the dehydration of 2-butanol?
  • A. Butene
  • B. Butyne
  • C. Butanol
  • D. Butanal
Q. What is the main product of the reaction between propene and bromine?
  • A. 1-bromopropane
  • B. 2-bromopropane
  • C. 1,2-dibromopropane
  • D. Bromopropane
Q. What is the main product when an amine reacts with a carboxylic acid?
  • A. Amide
  • B. Ester
  • C. Alcohol
  • D. Aldehyde
Q. What is the main product when hydrogen reacts with chlorine gas?
  • A. Hydrochloric acid
  • B. Hydrogen chloride
  • C. Chlorine gas
  • D. Chlorinated hydrocarbons
Q. What is the main product when hydrogen reacts with halogens?
  • A. Hydrides
  • B. Acids
  • C. Salts
  • D. Oxides
Q. What is the main purpose of calcination in metallurgy?
  • A. To remove moisture
  • B. To convert carbonates to oxides
  • C. To reduce metal ores
  • D. To purify metals
Q. What is the main purpose of roasting in metallurgy?
  • A. To purify metals
  • B. To convert sulfides to oxides
  • C. To increase solubility
  • D. To reduce metal ores
Q. What is the main purpose of using a buffer in electrophoresis?
  • A. To increase the temperature
  • B. To maintain a constant pH
  • C. To enhance the conductivity
  • D. To reduce sample size
Q. What is the main purpose of using a buffer solution in titration?
  • A. To increase the solubility of the titrant
  • B. To maintain a constant pH during the reaction
  • C. To enhance the color change of the indicator
  • D. To reduce the volume of the solution
Q. What is the main purpose of using a flux in metallurgy?
  • A. To increase the melting point
  • B. To facilitate the reduction of ores
  • C. To remove impurities
  • D. To enhance the color of metals
Q. What is the main purpose of using carbon in the extraction of metals from their ores?
  • A. To increase melting point
  • B. To act as a reducing agent
  • C. To form alloys
  • D. To enhance conductivity
Q. What is the main purpose of using carbon in the extraction of metals from their oxides?
  • A. To increase temperature
  • B. To act as a catalyst
  • C. To reduce metal oxides
  • D. To form alloys
Q. What is the main purpose of using carbon in the reduction of metal oxides?
  • A. To increase temperature
  • B. To act as a catalyst
  • C. To provide electrons
  • D. To form alloys
Q. What is the main reason for the difference in boiling points between cis and trans isomers?
  • A. Molecular weight
  • B. Dipole moment
  • C. Hydrogen bonding
  • D. Steric hindrance
Q. What is the main reason for the low boiling point of hydrogen compared to other group 1 hydrides?
  • A. Hydrogen forms stronger bonds
  • B. Hydrogen has a lower molecular weight
  • C. Hydrogen does not form hydrogen bonds
  • D. Hydrogen is a gas at room temperature
Q. What is the main use of alkenes in the industry?
  • A. Fuel
  • B. Plastics production
  • C. Solvents
  • D. Detergents
Q. What is the major product of the addition of HBr to 2-pentene?
  • A. 1-bromopentane
  • B. 2-bromopentane
  • C. 3-bromopentane
  • D. No reaction
Q. What is the major product of the dehydration of 2-butanol?
  • A. Butene
  • B. Butyne
  • C. Butanol
  • D. Butanal
Q. What is the major product of the electrophilic substitution of benzene with bromine in the presence of FeBr3?
  • A. Bromobenzene
  • B. Benzyl bromide
  • C. Bromobenzyl
  • D. Benzene
Q. What is the major product of the electrophilic substitution of toluene with bromine in the presence of FeBr3?
  • A. Bromotoluene
  • B. Bromobenzene
  • C. Benzyl bromide
  • D. No reaction
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