IIT-JAM Collected papers 2005–2022 · chemistry questions

425 questions from a source that prints this span of years rather than the year of each question. Each opens with its answer and explanation.

ABC26IN0543 · The indicator phenolphthalein changes colour at pH 9. This indicator is NOT suitable for accurate determination of the end point in the… · Analytical Chemistry & Instrumental – General
ABC26IN0544 · In ammonical buffer, oxine (8-hydroxyquinoline) forms yellow precipitate with · Analytical Chemistry & Instrumental – General
ABC26IN0545 · In the measurement of hardness of water by complexometric titration, identify P and Q in the following equation. arraylclccc [P]- & + &… · Analytical Chemistry & Instrumental – General
ABC26IN0546 · The reagent 'oxine' commonly used in analytical chemistry is · Analytical Chemistry & Instrumental – General
ABC26IN0547 · Indicator used in redox titration is · Analytical Chemistry & Instrumental – General
ABC26IN0548 · The indicator(s) appropriate for determination of end point in the titration of a weak acid with a strong base is/are · Analytical Chemistry & Instrumental – General
ABC26IN0549 · (being typed) · Analytical Chemistry & Instrumental – General
ABC26IN0550 · 8(b,c,d) HINTS \& SOLUTION · Analytical Chemistry & Instrumental – General
ABC26IN0551 · For each of the following metallo-proteins identify the metal-ion at the active-site and the function of the proteins: deoxy-hemoglobin… · Bioinorganic – General
ABC26IN0552 · The metal ion of an enzyme involved in hydration of CO2 is · Bioinorganic – General
ABC26IN0553 · Low-spin iron(III) centre is present in · Bioinorganic – General
ABC26IN0554 · The protein(s) that belong to the class of blue copper protein is(are) · Bioinorganic – General
ABC26IN0555 · The "heme" containing protein(s) is/are · Bioinorganic – General
ABC26IN0556 · Carbonic anhydrase is an example of · Bioinorganic – General
ABC26IN0557 · The correct option for the metal ion present in the active site of myoglobin, hemocyanin and vitamin B12, respectively, is · Bioinorganic – General
ABC26IN0558 · The true statement(s) regarding the carbonic anhydrase enzyme is/are · Bioinorganic – General
ABC26IN0559 · (being typed) · Bioinorganic – General
ABC26IN0560 · The CORRECT combination for metalloenzymes given in Column I with their catalytic reactions in Column II is · Bioinorganic – General
ABC26IN0561 · Among the following, the biomolecule with a direct metal-carbon bond is · Bioinorganic – General
ABC26IN0562 · Zinc containing enzyme(s) is/are · Bioinorganic – General
ABC26IN0563 · Hybridization of the central atoms in I3 -, ClF3 and SF4, respectively, are · Chemical Bonding – General
ABC26IN0564 · The geometries of the species [Br3 ]+, [Br3 ]-and [BrF3 ] are, respectively · Chemical Bonding – General
ABC26IN0565 · Correct trend in the bond order is · Chemical Bonding – General
ABC26IN0566 · The correct statement(s) about NO2, NO2+and CO2 is/are · VSEPR Geometry
ABC26IN0567 · The bond order of N2 +ion is ____ (Round off to one decimal place) · Chemical Bonding – General
ABC26IN0568 · Consider the following four xenon compounds: XeF2, XeF4, XeF6 and XeO3 The pair of xenon compounds expected to have non-zero dipole moment… · Dipole Moment Polarity
ABC26IN0569 · Among the following, the species having see-saw shape is/are · Chemical Bonding – General
ABC26IN0570 · The correct order of bond angles in BF3, NH3, NF3 and PH3 is · Chemical Bonding – General
ABC26IN0571 · The diatomic molecule(s) that has (have) two pi -type bonds is(are) · Chemical Bonding – General
ABC26IN0572 · The bond order of Be2 molecule is · Chemical Bonding – General
ABC26IN0573 · Effective nuclear charge for 3d electron in vanadium (atomic number =23 ) according to Slater's rule is · Bent Rule Walsh Diagrams
ABC26IN0574 · The bond angle in PBr3 is 101 . The percent 's' character of the central atom is ____. · Chemical Bonding – General
ABC26IN0575 · The intermolecular vander Waals potential is inversely proportional to r6. The corresponding force is proportional to · Chemical Bonding – General
ABC26IN0576 · The species having trigonal pyramidal shape is · Chemical Bonding – General
ABC26IN0577 · The predicted geometry of TeF4 by VSEPR theory is · VSEPR Geometry
ABC26IN0578 · Among the following, the isoelectronic pair is · Chemical Bonding – General
ABC26IN0579 · Among Ar, NH4 Cl, HF and HCl , the strength of interatomic / intermolecular forces follows the order: · Chemical Bonding – General
ABC26IN0580 · The most polar compound among the following is: · Chemical Bonding – General
ABC26IN0581 · 20(Square antiprismatic) 21(b) 22(*) 23. (NO2-<NO2<NO2+ ) 24(a) 25(d) 26(a) 27(c) 28(*) 29(b) 30(c) 31(*) 32(a) 33(d) 34(c) 35(c) 36(d)… · Chemical Bonding – General
ABC26IN0582 · Molecular shape of SOCl2 is · Chemical Bonding – General
ABC26IN0583 · 22(a) CH CH is the most acidic compound among ethane and ethylene. arrayc CH3 CH3 CH3 C H3+H+ CH2=CH2 CH2=C H+H+ CH CH CH C+H+ CH3 C… · Hydrogen Bonding Weak Interactions
ABC26IN0584 · Draw the structures of NO2+, NO2 and NO2-. Arrange them in the increasing order of O-N-O bond angles. · Chemical Bonding – General
ABC26IN0585 · Hybridization of the atoms indicated with the asterisk (*) in the following compounds sequentially, are · Chemical Bonding – General
ABC26IN0586 · Which of the following has a square planar geometry according to the VSEPR theory? Atomic number: B=5, S =16, Xe=54. · VSEPR Geometry
ABC26IN0587 · In which of the following C-H bond has the highest ' s ' character? · Chemical Bonding – General
ABC26IN0588 · At room temperature, HCl is a gas while HF is a liquid because · Hydrogen Bonding Weak Interactions
ABC26IN0589 · (b) Draw Lewis structures of SF4 and NO3 -. · VSEPR Geometry
ABC26IN0590 · The formal charges on the nitrogen atom from left to right in the azide anion, [N=N=N]-are · Chemical Bonding – General
ABC26IN0591 · The V-shape of SO2 is due to the presence of · Chemical Bonding – General
ABC26IN0592 · Based on VSEPR theory draw the most stable structure of ClF3 and XeF4. · MO Theory Diatomics