Main Group Elements

ABC26IN1285 · Consider the following reaction : N3P3Cl6 + 6HNMe2 → N3P3Cl3(NMe2)3 + 3 Me2NH.HCl [A] The number of possible isomers for [A] is · DEC 2015

ABC26IN1286 · The reaction of BCl3, with NH4Cl gives product A which upon reduction by NaBH4 gives product B. Product B upon reacting with HCl affords… · DEC 2015

ABC26IN1287 · Protonated form of ZSM-5 catalyzes the reaction of ethene with benzene to produce ethylbenzene. The correct statement for this catalytic… · DEC 2015

ABC26IN1288 · The numbers of P-S and P-P bonds in the compound P4 S3 are, respectively · JUNE 2016

ABC26IN0201 · The metal iodide with metallic lustre and high electrical conductivity is · 2016

ABC26IN1290 · The metal iodide with metallic lustre and high electrical conductivity is · DEC 2016

ABC26IN1291 · Consider the following statements for KC8 : (A) It is paramagnetic (B) It has eclipsed layer structure (C) Its electrical conductivity is… · DEC 2016 self-practice

ABC26IN1292 · Among the following, choose the correct products that are formed in the reaction of S2 Cl2 with ammonia in CCl4 NH4 Cl(A), S4 N4(B), S8(C)… · DEC 2016

ABC26IN1293 · The final product(s) of the reaction of arachno borane, B4 H10 with NMe3 is/are · DEC 2016

ABC26IN1296 · The compound N2 F2 has two isomers. Choose the correct option from the following: · JUNE 2017

ABC26IN1297 · The first ionization energy is the lowest for · DEC 2017

ABC26IN1298 · Choose the incorrect statement for the phosphomolybdate anion [PMo12O40]3- · DEC 2017

ABC26IN0202 · The structure of CaB6 is close to that of 1. Cesium chloride 2. Nickel arsenide 3. Rock salt 4. Zinc blende · 2018 self-practice

ABC26IN1299 · The structure of CaB6 is close to that of · JUNE 2018

ABC26IN0205 · Consider following statements: I: AsCl5 is thermally less stable than PCl5. II: Size of As is more than that of P. choose correct answer… · 2018 self-practice

ABC26IN1303 · Consider the following statements for Be2Cl4 (I), B2Cl4 (II) and Ga2Cl4 (III): (A) There is an M-M (M = Be, B, Ga) bond in all. (B) The… · JUNE 2018

ABC26IN0206 · The reaction of decaborane B10H14, with acetylene in the presence of Et2S gives · 2018

ABC26IN1304 · The reaction of decaborane B10 H14, with acetylene in the presence of Et2 S gives · DEC 2018

ABC26IN1305 · In compound N3 P3 F6, the geometry around nitrogen and phosphorus, respectively, are · DEC 2018

ABC26IN1310 · The oxidation state of sulphur in the dithionous and dithionic acids, respectively, are · JUNE 2019

ABC26IN1311 · In the synthesis of polydimethylsiloxane, the chain forming, branching and terminating agents respectively, are · JUNE 2019

ABC26IN0208 · The correct statements regarding Boron among the following (1) Nuclear spin of 11B is greater than that of 10B (II) The polarities of B-H… · 2019

ABC26IN1312 · The correct statements regarding Boron among the following (1) Nuclear spin of 11 B is greater than that of 10 B (II) The polarities of B-H… · JUNE 2019

ABC26IN0209 · Choose the correct statement(s) among the following (I) LiF is more soluble than LiClO4 in water. (II) The standard reduction potential… · 2019

ABC26IN1313 · Choose the correct statement(s) among the following (I) LiF is more soluble than LiClO4 in water. (II) The standard reduction potential… · JUNE 2019

ABC26IN1314 · Choose the correct statement(s) among the following (1) The dihedral angle in O2F2 is 0°. (II) OF2 is generally prepared by reacting… · JUNE 2019

ABC26IN1315 · The common heptacity observed for coordination of C60 to a metal center is · DEC 2019 self-practice

ABC26IN1318 · The correct statements for dithionite and dithionate anions from the following are (A) both have S-S bond (B) both are dianionic (C)… · DEC 2019

ABC26IN0211 · Correct statement/s among the following with respect to ionization energy (IE) is/are (i) (IE1 + IE2 + IE3) for indium is more than that of… · 2020

ABC26IN1319 · Correct statement/s among the following with respect to ionization energy (IE) is/are (i) (IE1+IE2+IE3) for indium is more than that of… · DEC 2019

ABC26IN0212 · The reason for significantly high solubility of AgClO4 in benzene than in alkane solvents is · 2020

ABC26IN1320 · The reason for significantly high solubility of AgClO4 in benzene than in alkane solvents is · DEC 2019

ABC26IN0213 · Choose the correct statements for the Group 15 halides: (i) AsCl3 can form complexes of type [AsCl4]^- in the presence of a chloride source… · 2020

ABC26IN1321 · Choose the correct statements for the Group 15 halides: (i) AsCl3 can form complexes of type [AsCl4]-in the presence of a chloride source… · DEC 2019

ABC26IN0214 · The reaction of XeF6 with a limited amount of quartz gives compound A. Then on reaction with an equivalent amount of XeO3. A gives B. The… · 2020

ABC26IN1322 · The reaction of XeF6 with a limited amount of quartz gives compound A. Then on reaction with an equivalent amount of XeO3. A gives B. The… · DEC 2019

ABC26IN1323 · The energies of interaction for (i) ion pair, (ii) ion-dipole, and (iii) dipole-dipole interactions are inversely proportional to · DEC 2019

ABC26IN1324 · The correct order of the electron affinity for one-electron gain of the elements is · JUNE 2021

ABC26IN1325 · Which of the statements (A-D) given below are correct for B2H6 molecule: A. Addition of Et2O.BF3 to NaBH4 in a polyether solvent produces… · JUNE 2021

ABC26IN1326 · Which of the following reaction (s) do(es) NOT occur (i) [NPCl2]3+6 NaF [ Reflux]MeCN [NPF2]3+6 NaCl (ii) n PCl5+nNH4 Cl [ Reflux]C6 H5 Cl… · JUNE 2021

ABC26IN0726 · The value of 'n' in [Pn O18]6- is ____ · 2005-2022 self-practice

ABC26IN0727 · Reaction of BCl3 with NH4 Cl at 140° C produces compound P. further, P reacts with NaBH4 to give a colorless liquid Q. The reaction of Q… · 2005-2022 self-practice

ABC26IN1237 · The material that exhibits the highest electrical conductivity among the following sulfur - nitrogen compounds is · DEC 2011

ABC26IN0718 · Among the following compounds, the one having the lowest boiling point is · 2005-2022

ABC26IN1294 · Both potassium and sulfuric acid form intercalation compounds with graphite. The graphite layers are · JUNE 2017

ABC26IN1239 · A Sodalite cage in zeolites is · DEC 2011

ABC26IN1259 · Treatment of ClF3 with SbF5 leads to the formation of a/an · DEC 2013

ABC26IN0186 · Commonly used scintillator for measuring radiation is · 2013

ABC26IN1261 · Commonly used scintillator for measuring radiation is · DEC 2013

ABC26IN0198 · The ring size and the number of linked tetrahedral present in [Si6 O18]12- are, respectively · 2015