Doubts
Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents
Sign in to save progress →
Doubts
Sign in

Some Basic Concepts of Chemistry question

2022 · 24 Jun · Shift 2 · Q1
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Chemistry
  4. /Some Basic Concepts of Chemistry
  5. /2022 · 24 Jun · Shift 2 · Q1

Some Basic Concepts of Chemistry question

2022 · 24 Jun · Shift 2 · Q1

JEE MainChemistrySome Basic Concepts of ChemistryMCQ+4 / −1
120 g of an organic compound that contains only carbon and hydrogen gives 330 g of CO2CO_2CO2​ and 270 g of water on complete combustion. The percentage of carbon and hydrogen, respectively are
  1. A
    25 and 75
  2. B
    40 and 60
  3. C
    60 and 40
  4. D
    75 and 25
PreviousNext

More from Some Basic Concepts of Chemistry

  • SO2​Cl2​ on reaction with excess of water results into acidic mixture SO2​Cl2​+2H2​O→H2​SO4​+2HCl 16 moles of NaOH…2022 · MCQ
  • 56.0 L of nitrogen gas is mixed with excess hydrogen gas and it is found that 20 L of ammonia gas is produced. The volume of unused nitrogen gas is found to be ​ L.2022 · Numerical
  • A sample of 4.5 mg of an unknown monohydric alcohol, R−OH was added to methylmagnesium iodide. A gas is evolved and is collected and its volume measured to be 3.1 mL. The molecular weight of the unknown alcohol is ​…2022 · Numerical
  • The number of N atoms in 681 g of C7​H5​N3​O6​ is x × 1021. The value of x is (NA = 6.02 × 1023 mol − 1) (Nearest Integer)2022 · Numerical
  • 1 L aqueous solution of H2​SO4​ contains 0.02 m mol H2​SO4​. 50% of this solution is diluted with deionized water to give 1 L solution (A). In solution (A), 0.01 m mol of H2​SO4​ are added. Total m mols of H2​SO4​ in the final…2022 · Numerical
  • Number of grams of bromine that will completely react with 5.0 g of pent-1-ene is ​× 10 − 2 g. (Atomic mass of Br = 80 g/mol) [Nearest Integer]2022 · Numerical
  • A protein 'A' contains 0.30% of glycine (molecular weight 75). The minimum molar mass of the protein 'A' is ​× 103 g mol − 1 [nearest integer]2022 · Numerical
  • Chlorophyll extracted from the crushed green leaves was dissolved in water to make 2 L solution of Mg of concentration 48ppm. The number of atoms of Mg in this solution is x×1020 atoms. The…2022 · Numerical