Stoichiometry and Stoichiometric Calculations

JEE Main Chemistry · Some Basic Concepts of Chemistry · 28 questions, latest first

• How many grams of residue is obtained by heating 2.76 g of silver carbonate? (Given: Molar mass of C, O and Ag are 12, 16 and 108…20265 April, Shift 1 · Q51
• The ratio of mass percentage ( w / w ) of C: H in a hydrocarbon is 12: 1. It has two carbon atoms. The weight (in g ) of CO_2( g)…20262 April, Shift 2 · Q51
• The mass of iron converted into Fe_3 O_4 by the action of 18 g of steam is: (Given: Molar mass of H, O and Fe are 1, 16 and 56 g…20262 April, Shift 1 · Q51
• One mole of an alkane (x) requires 8 mole oxygen for complete combustion. Sum of number of carbon and hydrogen atoms in the…20262 April, Shift 1 · Q73
• In the reaction, 2 Al( s)+6 HCl(aq) → 2 Al^3+(aq)+6 Cl^-(aq)+3 H_2( g)202622 January, Shift 1 · Q51
• Aqueous HCl reacts with MnO_2( s) to form MnCl_2(aq), Cl_2( g) and H_2 O(l). What is the weight (in g) of Cl_2 liberated when 8.7…202621 January, Shift 2 · Q51
• 0 g of calcium metal is allowed to react with excess HCl at 1.0 atm pressure and 273 K. Which of the following statements is…202621 January, Shift 1 · Q52
• The amount of calcium oxide produced on heating 150 kg limestone ( 75 % pure) is ____ kg. (Nearest integer) Given: Molar mass (in…20254 April, Shift 2 · Q74
• Mass of magnesium required to produce 220 mL of hydrogen gas at STP on reaction with excess of dil. HCl is Given: Molar mass of…20253 April, Shift 2 · Q51
• X g of nitrobenzene on nitration gave 4.2 g of m -dinitrobenzene. X= ____ g. (nearest integer) [Given: molar mass (in g mol^-1 )…20253 April, Shift 2 · Q74
• Xg of benzoic acid on reaction with aq NaHCO_3 released CO_2 that occupied 11.2 L volume at STP. X is ____ g.202524 January, Shift 1 · Q74
• What amount of bromine will be required to convert 2 g of phenol into 2,4,6-tribromophenol? (Given molar mass in g mol^-1 of C,…202523 January, Shift 1 · Q66
• Combustion of glucose (C_6 H_12 O_6) produces CO_2 and water. The amount of oxygen (in g) required for the complete combustion of…20248 April, Shift 1 · Q61
• If 279 g of aniline is reacted with one equivalent of benzenediazonium chloride, the maximum amount of aniline yellow formed will…20248 April, Shift 1 · Q87
• The number of moles of methane required to produce 11 g CO_2( g) after complete combustion is: (Given molar mass of methane in g…20245 April, Shift 2 · Q61
• In the Claisen-Schmidt reaction to prepare 351 g of dibenzalacetone using 87 g of acetone, the amount of benzaldehyde required is…20245 April, Shift 2 · Q87
• X g of ethanamine was subjected to reaction with NaNO_2 / HCl followed by hydrolysis to liberate N_2 and HCl. The HCl generated…20245 April, Shift 2 · Q90
• From 6.55 g of aniline, the maximum amount of acetanilide that can be prepared will be ____ × 10^-1 g.20244 April, Shift 2 · Q87
• Xg of ethylamine is subjected to reaction with NaNO_2 / HCl followed by water; evolved dinitrogen gas which occupied 2.24 L…20244 April, Shift 1 · Q90
• A sample of CaCO_3 and MgCO_3 weighed 2.21 g is ignited to constant weight of 1.152 g. The composition of mixture is: (Given…202431 January, Shift 2 · Q61
• Number of moles of methane required to produce 22 g CO_2( g) after combustion is x × 10^-2 moles. The value of x is ____.202431 January, Shift 1 · Q81
• 3 g of aniline is subjected to reaction with excess of acetic anhydride to prepare acetanilide. The mass of acetanilide produced…202427 January, Shift 2 · Q90
• Mass of methane required to produce 22 g of CO_2 after complete combustion is ____ g. (Given Molar mass in g mol^-1, C=12.0;…202427 January, Shift 1 · Q81
• 1 g of a carbonate (M_2 CO_3) on treatment with excess HCl produces 0.01 mol of CO_2. The molar mass of M_2 CO_3 is ____ g…202313 April, Shift 2 · Q81
• The volume of hydrogen liberated at STP by treating 2.4 g of magnesium with excess of hydrochloric acid is ____ × 10^-2 L Given:…202311 April, Shift 2 · Q81
• When a hydrocarbon A undergoes complete combustion it requires 11 equivalents of oxygen and produces 4 equivalents of water. What…202331 January, Shift 2 · Q42
• Zinc reacts with hydrochloric acid to give hydrogen and zinc chloride. The volume of hydrogen gas produced at STP from the…202331 January, Shift 1 · Q51
• When a hydrocarbon A undergoes combustion in the presence of air, it requirs 9.5 equivalents of oxygen and produces 3 equivalents…202329 January, Shift 2 · Q43