JEE MAIN, AIPMT, Chemistry Question Papers – MCQs Test 21 Sr. No. Question Answer 1. The monomers of Buna-S rubber are (A) vinyl chloride and sulphur (B) butadiene (C) styrene and butadiene (D) isoprene and butadiene Answer: (C) 2. The noble gas mixture is cooled in a coconut bulb at […]
JEE MAIN, AIPMT, Chemistry Question Papers – MCQs Test 22 Sr. No. Question Answer 1. Which one of the following is wrongly matched? (A) [Ni(CO)4] – neutral ligand (B) [Cu (NH3 )4]+2 – square planar (C) [Co (en )3 ]+3 – follows EAN rule (D) [Fe (CN )6]–3 – sp3d2 Answer: (D) 2. The […]
JEE MAIN, AIPMT, Chemistry Question Papers – MCQs Test 23 Sr. No. Question Answer 1. The spin only magnetic moment of Mn+4 ion is nearly ______. (A) 6 BM (B) 3 BM (C) 5 BM (D) 4 BM Answer: (D) 2. The standard electrode potential for the half cell reactions […]
JEE MAIN, AIPMT, Chemistry Question Papers – MCQs Test 24 Sr. No. Question Answer 1. Thermodynamic standard conditions of temperature and pressure are (A) 0°C and 1 atm (B) 273 k and 101.3 k Pa (C) 298 k and 1 atm (D) 0°C and 101.3 k Pa Answer: (C) 2. […]
JEE MAIN, AIPMT, Chemistry Question Papers – MCQs Test 25 Sr. No. Question Answer 1. When KBr is dissolved in water, K+ ions are (A) oxidised (B) reduced (C) hydrolysed (D) hydrated Answer: (D) 2. When sulphur dioxide is passed in an acidified K2Cr2 O7 solution, the oxidation state of […]
JEE MAIN, AIPMT, Chemistry Question Papers – MCQs Test 26 Sr. No. Question Answer 1. Which of the following forms a colour less solution in aqueous medium? (A) Ti 3+ (B) Sc 3+ (C) V 3+ (D) Cr 3+ Answer: (B) 2. Which of the following has the maximum number […]
JEE MAIN, AIPMT, Chemistry Question Papers – MCQs Test 27 Sr. No. Question Answer 1. Which of the two ions from the list given below that have the geometry that is explained by the same hybridization of orbitals, ? (A) and (B) and (C) and (D) SCN– and Answer: (B) […]
JEE MAIN, AIPMT, Chemistry Question Papers – MCQs Test 28 Sr. No. Question Answer 1. Based on the first law of thermodynamics, which one of the following is correct? (A) For an isochoric process, ΔU = –q (B) For an isochoric process, q = +w (C) For a cyclic process, […]
JEE MAIN, AIPMT, Chemistry Question Papers – MCQs Test 29 Sr. No. Question Answer 1. An element belongs to Group 15 and third period of the periodic table. Its electronic configuration will be (A) 1s22s22p3 (B) 1s22s22p4 (C) 1s22s22p63s23p3 (D) 1s22s22p63s23p2 Answer: (C) 2. An example for autocatalysis is (A) […]
JEE MAIN, AIPMT, Chemistry Question Papers – MCQs Test 30 Sr. No. Question Answer 1. Following is the substitution reaction in which —CN replaces —ClR – Cl + R – CN + KClTo obtain propanenitrile, R-Cl should be (A) 1- chloropropane (B) chloroethane (C) 2-chloropropane (D) chloromethane Answer: (B) 2. […]