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VITEEE Chemistry Flashcards
51 question-and-answer cards covering Chemistry as it is examined in VITEEE. 24 of them are printed below, taken from across the deck — no signup, no paywall on the preview.
24 sample cards from the Chemistry deck
Sampled from the end of the deck, so these are different cards from the ones shown on the syllabus page.
Write the expression for Kp in terms of Kc.
Kp = Kc(RT)^(Delta ng), where Delta ng is the change in number of moles of gas (products - reactants).
Define pH and give the relation between Ka and Kb of a conjugate acid-base pair.
pH = -log[H+]. For a conjugate pair: Ka * Kb = Kw = 1.0 x 10^-14 at 25 C.
What is the common ion effect?
The suppression of the dissociation of a weak electrolyte upon adding a strong electrolyte that shares a common ion (e.g., adding NaCl reduces ionization of HCl-bearing systems / decreasing solubility).
Write the Henderson-Hasselbalch equation for an acidic buffer.
pH = pKa + log([salt]/[acid]).
Define solubility product (Ksp) for a salt AB.
For AB <-> A+ + B-, Ksp = [A+][B-]. A precipitate forms when the ionic product exceeds Ksp.
Write the Nernst equation for an electrode at 298 K.
E = E0 - (0.0591/n) log Q (Q = reaction quotient, n = number of electrons transferred).
State the relation between standard cell potential and Gibbs free energy.
Delta G0 = -nFE0_cell, where n is moles of electrons, F is the Faraday constant (96500 C/mol).
State Faraday's first law of electrolysis.
The mass of substance deposited at an electrode is directly proportional to the quantity of electricity passed: m = (M/nF) * Q, where Q = I * t.
Define molar conductivity and how it varies with dilution for a strong electrolyte.
Molar conductivity = kappa/c (conductivity divided by concentration). For a strong electrolyte it increases slightly with dilution and follows the Debye-Huckel-Onsager equation; limiting value is at infinite dilution.
Write the integrated rate law and half-life of a first-order reaction.
k = (2.303/t) log([A0]/[A]); half-life t(1/2) = 0.693/k, independent of initial concentration.
State the Arrhenius equation and what each term means.
k = A e^(-Ea/RT), where A is the frequency/pre-exponential factor, Ea is the activation energy, R is the gas constant, and T is temperature in K.
Define order and molecularity of a reaction.
Order: the sum of the powers of concentration terms in the experimental rate law (can be zero or fractional). Molecularity: the number of reacting species in an elementary step (always a whole number, >=1).
Distinguish physisorption from chemisorption.
Physisorption: weak van der Waals forces, low heat of adsorption, reversible, multilayer, decreases with temperature. Chemisorption: chemical bonds, high heat of adsorption, irreversible, monolayer, highly specific.
What is the Tyndall effect and what does it indicate?
The scattering of a light beam by colloidal particles, making the path visible. It distinguishes a colloidal sol from a true solution.
Why does Group 15 nitrogen not form pentahalides while phosphorus does?
Nitrogen lacks d-orbitals in its valence shell, so it cannot expand its octet; phosphorus has accessible 3d orbitals and forms compounds like PCl5.
Write the equations for the contact process step that forms SO3 and the catalyst used.
2 SO2 + O2 -> 2 SO3 in the presence of V2O5 catalyst (vanadium pentoxide); SO3 is then absorbed to make oleum and sulphuric acid.
Why do transition (d-block) metals show variable oxidation states?
Because the energies of (n-1)d and ns orbitals are very close, electrons from both can participate in bonding, allowing multiple oxidation states.
Why are many transition metal compounds coloured?
Due to d-d electronic transitions: electrons absorb visible light to jump between split d-orbitals, and the complementary colour is transmitted/observed.
State Werner's primary and secondary valences in coordination compounds.
Primary valence = oxidation state of the metal (ionizable, satisfied by anions). Secondary valence = coordination number (non-ionizable, satisfied by ligands, fixed and directional).
What is a chelate ligand? Give an example.
A chelate is a polydentate ligand that binds a central metal through two or more donor atoms forming a ring. Example: ethylenediamine (en) or EDTA.
Name the principal ore and the reduction step for extracting iron in a blast furnace.
Iron is extracted from haematite (Fe2O3). In the blast furnace it is reduced by carbon monoxide: Fe2O3 + 3CO -> 2Fe + 3CO2.
Distinguish chain, position, and functional isomerism.
Chain isomerism: different carbon-skeleton arrangements. Position isomerism: same skeleton but different position of a functional group/substituent. Functional isomerism: same molecular formula but different functional groups.
State Markovnikov's rule for addition of HX to an unsymmetrical alkene.
When HX adds to an unsymmetrical alkene, the hydrogen atom adds to the carbon that already has more hydrogens (so the halogen goes to the more substituted carbon, via the more stable carbocation).
What are SN1 and SN2 mechanisms and how does substrate structure affect them?
SN1: two-step, via a carbocation, first-order, favored by tertiary substrates and polar protic solvents, gives racemization. SN2: one-step backside attack, second-order, favored by primary substrates and polar aprotic solvents, gives inversion of configuration.
What this deck covers
The Chemistry deck follows the VITEEE Chemistry syllabus — 6 chapters and 21 topics — so questions land on material that is genuinely examinable rather than trivia around it. That works out to roughly 8.5 cards per chapter.
Answers are written to be recallable, not just readable — averaging about 148 characters, which is long enough to carry the reasoning and short enough to say out loud.
A deck like this earns its keep on the second and third pass. Read the syllabus first so you know the shape of the subject, then use the cards to find the specific facts that have not stuck.
Chemistry flashcards FAQ
How many Chemistry flashcards are in this VITEEE deck?
51 cards. This page previews 24 of them, sampled evenly across the deck so you can judge the difficulty before installing anything.
Are these VITEEE flashcards free?
Yes. The preview here is free to read with no signup, and the full 51-card deck is free inside the Examius app.
What do the Chemistry cards cover?
They follow the VITEEE Chemistry syllabus — 6 chapters and 21 topics — so the questions track what is actually examinable.
How should I use these flashcards?
Read the syllabus first so you know the shape of the subject, then drill the deck. Examius schedules each card with spaced repetition, so cards you keep missing come back sooner and ones you know drift further apart.