A fixed mass of gas has a volume of 92cm³ at 3°C. When will be its volume at 18°C if the pressure remains constant?
A. 15.3cm³ B. 87.3cm³ C. 552.0cm³ D. 97.0cm³ Correct Answer: Option D – 97.0cm³ Explanation (V1/T1) = (V2/T2) T1 = 3+273 = 276K ∴ (92/276) = (V2/291) T2 = 18 + 273 = 291K V2 (92 X 291)/276 = 97.0...
Which of the following chloride would exhibit the least ionic character?
A. MgCl2 B. CaCl2 C. LiCl D. AlCl3 Correct Answer: Option D – AlCl3
Which of the following statement is true of a proton?
A. The mass of a proton is 1840 times the mass of an electron B. the total mass of the protons in a particular nucleus is always half the nuclear size C. The mass of a proton is one-twelfth the molar mass of carbon D. The mass of a proton is 1.0008g Correct Answer:...
A rock sample was added to cold dilute HNO3. The gas evolved was passed into a solution of acidified K2Cr2O7 and the solution turned green. The sample contains?
A. Cl- B. NO3- C. SO32- D. SO42- Correct Answer: Option C – SO32-Products
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