JEE MAIN, AIPMT, Chemistry Question Papers – MCQs Test 11 Sr. No. Question Answer 1. Identify the ore not containing iron (A) chalcopyrites (B) carnallite (C) siderite (D) limonite Answer: (B) 2. Identify the reaction that does not take place in a blast furnace. (A) CaCO3 → CaO + CO2 (B) […]
JEE MAIN, AIPMT, Chemistry Question Papers – MCQs Test 12 Sr. No. Question Answer 1. In Dumas’ method of estimation of nitrogen 0.35 g of an organic compound gave 55 mL of nitrogen collected at 300 K temperature and 715 mm pressure. The percentage composition of nitrogen in the compound […]
JEE MAIN, AIPMT, Chemistry Question Papers – MCQs Test 13 Sr. No. Question Answer 1. Which one of the following statements is true’? (A) Drying of oil involves hydrolysis (B) Saponification of oil yields a diol. (C) Refining of oil involves hydrogenation (D) Addition of antioxidant to oil minimizes rancidity […]
JEE MAIN, AIPMT, Chemistry Question Papers – MCQs Test 14 Sr. No. Question Answer 1. Mesomeric effect involves delocalisation of (A) pi electrons (B) sigma electrons (C) protons (D) none of these Answer: (A) 2. Methoxy methane and ethanol are (A) Position isomers (B) Chain isomers (C) Functional isomers (D) […]
JEE MAIN, AIPMT, Chemistry Question Papers – MCQs Test 15 Sr. No. Question Answer 1. Of the following which one is classified as polyester polymer? (A) Nylon-66 (B) Terylene (C) Backelite (D) Melamine Answer: (B) 2. One dm3 solution containing 10–5 moles each of Cl– ions and CrO ions is […]
JEE MAIN, AIPMT, Chemistry Question Papers – MCQs Test 16 Sr. No. Question Answer 1. Presence of halogen in organic compounds can be detected using (A) Beilstien’s test (B) kjeldahl test (C) Duma’s test (D) Leibig’s test Answer: (A) 2. Rate of physical adsorption increases with (A) decrease in pressure […]
JEE MAIN, AIPMT, Chemistry Question Papers – MCQs Test 17 Sr. No. Question Answer 1. The best method for the conversion of an alcohol into an alkyl chloride is by treating the alcohol with (A) SOCl2 in presence of pyridine (B) Dry HCl in the presence of anhydrous ZnCl2 (C) […]
JEE MAIN, AIPMT, Chemistry Question Papers – MCQs Test 18 Sr. No. Question Answer 1. The compound which forms acetaldehyde when heated with dilute NaOH is (A) 1 Chloro ethane (B) 1, 2 Dichloro ethane (C) 1, 1 Dichloro ethane (D) 1, 1, 1 Trichloro ethane Answer: (C) 2. The […]
JEE MAIN, AIPMT, Chemistry Question Papers – MCQs Test 19 Sr. No. Question Answer 1. The d-electron configurations of Cr2+, Mn2+, Fe2+ and Co2+are d4, d5, d6 and d7 respectively. Which one of the following will exhibit minimum paramagnetic behaviour? (A) [Cr(H2O)6]2+ (B) [Mn(H2O)6]2+ (C) [Fe(H2O)6]2+ (D) [Co(H2O)6]2+ (At. nos. […]
JEE MAIN, AIPMT, Chemistry Question Papers – MCQs Test 20 Sr. No. Question Answer 1. The general formula of a cycloalkane is (A) CnH2n + 2 (B) CnH2n – 2 (C) CnH2n (D) CnHn Answer: (C) 2. The incorrect statement in respect of Chromyl chloride test is (A) formation of […]