Chemistry questions
29404 published questions with worked solutions.
- Under hydrolytic conditions, the compounds used for preparation of linear polymer and for chain termination, respectively, areNot in JEE Main or NEET syllabus
- When O_2 is adsorbed on a metallic surface, electron transfer occurs from the metal to O_2 . The **TRUE** statement(s) regarding...Not in JEE Main or NEET syllabus
- One mole of an ideal gas at 300 K in thermal contact with surroundings expands isothermally from 1.0 L to 2.0 L against a...
- The increasing order of atomic radii of the following Group 13 elements is
- Among [Ni(CO)_4] , [NiCl_4]^ 2- , [Co(NH_3)_4Cl_2]Cl , Na_3[CoF_6] , Na_2O_2 and CsO_2 , the total number of paramagnetic...
- On complete hydrogenation, natural rubber producesNot in JEE Main or NEET syllabus
- According to the Arrhenius equation,
- The crystalline form of borax has
- The compound(s) with TWO lone pairs of electrons on the central atom is(are)
- The correct statement(s) about the following reaction sequence is(are) Cumene ( C_9H_ 12 ) [ ii) H_3O^+ ] i) O_2 P CHCl_3/NaOH Q...
- The mole fraction of a solute in a solution is 0.1. At 298 K, molarity of this solution is the same as its molality. Density of...
- In neutral or faintly alkaline solution, 8 moles of permanganate anion quantitatively oxidize thiosulphate anions to produce...
- The number of geometric isomers possible for the complex [CoL_2Cl_2]^- ( L=H_2NCH_2CH_2O^- ) is
- For the following electrochemical cell at 298 K, Pt (s) ,| , H_2 (g,1 bar ) ,| , H^+ (aq,1 M ) , | , M^ 4+ (aq), M^ 2+ (aq) ,| ,...
- The geometries of the ammonia complexes of Ni^ 2+ , Pt^ 2+ and Zn^ 2+ , respectively, are
- According to Molecular Orbital Theory,
- Mixture(s) showing positive deviation from Raoult's law at 35 °C is(are)
- The **CORRECT** statement(s) for cubic close packed (*ccp*) three dimensional structure is(are)Not in JEE Main or NEET syllabus
- Extraction of copper from copper pyrite ( CuFeS_2 ) involvesNot in JEE Main or NEET syllabus
- The nitrogen containing compound produced in the reaction of HNO_3 with P_4O_ 10