Question: 4.4 g of an unknown gas occupies 2.24L of volume at standard temperature and pressure. The gas may be [MP PMT 1995]
(a) Carbon dioxide
(b) Carbon monoxide
(c) Oxygen
(d) Sulphur dioxide
Correct Answer: (a) Carbon dioxide
More Question
- In the following reaction, which choice has value twice that of the equivalent mass of the oxidising agent SO₂ + H₂O → 3S + 2H₂O [DPMT 2000]
- Complete combustion of 0.858 g of compound X gives 2.63 g of CO₂ and 1.28 g of H₂O. The lowest molecular mass X can have [Kerala MEE 2000]
- The mass of 112 cm³ of CH₄ gas at STP is [Karnataka CET 2001]
- What volume of Hydrogen gas, at 273 K and 1 atm pressure will be consumed in obtaining 21.6 g of elemental boron (atomic mass = 10.8) from the reduction of boron trichloride by Hydrogen [AIEEE 2003]
- A 100 ml solution of 0.1 n HCl was titrated with 0.2 N NaOH solution. The titration was discontinued after adding 30 ml of NaOH solution. The remaining titration was completed by adding 0.25 N KOH solution. The volume of KOH required for completing the titration is [DCE 1999]
- 3.92 g of ferrous ammonium sulphate crystals are dissolved in 100 ml of water, 20 ml of this solution requires 18 ml of KMnO₄ during titration for complete oxidation. The weight of KMnO4 present in one litre of the solution is [Tamilnadu CET 2002]
- In standardization of Na₂S₂O₃ using K₂Cr₂O₇ by iodometry, the equivalent weight of K₂Cr₂O₇ is [IIT 2000]
- One litre hard water contains 12.00 mg Mg^2+ milli equivalent of washing soda required to remove its hardness is
- The set of numerical coefficient that balances the equation K₂CrO₄ + HCl → K₂Cr₂O₇ + KCl + H₂O is [Kerala CEE 2001]
- If 10²¹ molecules are removed from 200mg of CO₂, then the number of moles of CO₂ left are [IIT 1983]
- In a mole of water vapour at STP, the volume actually occupied or taken by the molecules (i.e., Avogadro’s No. x Volume of one molecule) is [Kerala EEE 2000]