Related InterviewSolutions

• The density of a gas is `1.964 g dm^(-3)` at 273 K and 76 cm Hg. The gas is:A. `CH_(4)`B. `C_(2) H_(6)`C. `CO_(2)`D. `Xe`
• 4.4 g of a gas at STP occupies a volume of 2.24 L. The gas can be :A. `O_(2)`B. `CO`C. `NO_(2)`D. `CO_(2)`
• The compressibility of a gas is less than unity at `STP`, therefore,A. `V_(m) gt 22.4` litreB. `V_(m) lt 22.4` litreC. `V_(m) = 22.4` litreD. `V_(m) = 44.8` litre
• The rate of diffusion of methane at a given temperature is twice that of a gas `X`. The molecular weight of `X` isA. `64.0`B. `32.0`C. `4.0`D. `8.0`
• 273 mL of a gas at STP was taken to `27^(@)C` and 600 mm pressure. The final volume of the gas would be :A. 273 mLB. 300 mLC. 380 mLD. 586 mL
• Assertion: On cooling, the brown colour of nitrogen dioxide disappears. Reason: On cooling, `NO_(2)` undergoes dimerisation resulting in the pairing of the odd electron in `NO_(2)`.A. If both A and R are correct and R is the correct explanation of AB. If both A and R are correct but R is not the correct explanation of AC. If A is correct but R is incorrectD. If A is incorrect but R is correct
• Assertion: The plot of volume `(V)` versus pressure `(P)` at constant temperature is a hyperbola in the first quadrant. Reason: `V prop 1//P` at constant temperature.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true but R is falseD. If both A and R are false
• Assertion: Noble gases can be liquefied. Reason: Attractive forces can exist between nonpolar molecules.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true but R is falseD. If both A and R are false
• (A) At `27^(@)C`, the kinetic energy of 8 gram of methane is equal to the kinetic energy of 16 gram of oxygen (R) The total heat change in a reaction is the same whether the chemical reaction takes place in one single step or in several stepsA. If both A and R are correct and R is the correct explanation of AB. If both A and R are correct but R is not the correct explanation of AC. If A is correct but R is incorrectD. If A is incorrect but R is correct
• Assertion: Sulphur dioxide and chlorine are bleaching agents. Reason: Both are reducing agents.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true but R is falseD. If both A and R are false