JEE MainChemistrySome Basic Concepts of ChemistryMCQ+4 / −1
On combustion 0.210 g of an organic compound containing C, H and O gave 0.127 g and 0.307 g . The percentages of hydrogen and oxygen in the given organic compound respectively are:
- A7.55, 43.85
- B6.72, 53.41
- C6.72, 39.87
- D53.41, 39.6
More from Some Basic Concepts of Chemistry
- Density of 3 M NaCl solution is . The molality of the solution is :2025 · MCQ
- 20 mL of 2 M NaOH solution is added to 400 mL of 0.5 M NaOH solution. The final concentration of the solution is . (Nearest integer)2025 · Numerical
- of is left after removing molecules from its '' mg sample. The mass of taken initially is Given: …2025 · MCQ
- During " S " estimation, 160 mg of an organic compound gives 466 mg of barium sulphate. The percentage of Sulphur in the given compound is %. (Given molar mass in of …2025 · Numerical
- 0.01 mole of an organic compound containing hydrogen, on complete combustion produced . Molar mass of is .2025 · Numerical
- When 81.0 g of aluminium is allowed to react with 128.0 g of oxygen gas, the mass of aluminium oxide produced in grams is . (Nearest integer) Given : Molar mass of Al is …2025 · Numerical
- Consider the following reaction occurring in the blast furnace: '' kg of iron is produced…2025 · Numerical
- Xg of benzoic acid on reaction with aq released that occupied 11.2 L volume at STP. X is g.2025 · Numerical