Last seen: Oct 19, 2020
(a) r ∝ 1/√M Explanation: According to Graham's law of diffusion or effusion "under similar conditions of temperature and pressure, rate of diffus...
(b) Non-ideal gas Explanation: Van der Waal’s equation is applicable for real (non-ideal) gases.
(b) 99.5°C Explanation: From Charle's law, P1/T1 = P2/T2 12/(273 + 27) = 14.9/T2 T2 = 14.9 x 300/12 = 372.5 K = 372.5 – 273 = 99.5°C
(c) 1 Explanation: Compressibility factor (Z) is a convenient method of showing deviation of real gases from an ideal gas Z = PV/nRT For ideal...
(b) 310 cc Explanation: From P1V1/T1 = P2V2/T2 = V1 x 640/(273 + 47) = (620 x 300)/(273 + 27) V1 = (620 x 300 x 320)/ 640 x 300 = 310 cc
(a) If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
(d) If both the Assertion and Reason are incorrect. Explanation: The specific conductivity decreases while equivalent and molar conductivities inc...
(a) If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion. Explanation: At cathode : Cu2+(aq) + 2e-→ C...
(d) If both the Assertion and Reason are incorrect. Explanation: The specific conductivity decreases while equivalent and molar conductivities inc...
(a) If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion. Explanation: According to Kohlrausch law, “...
(b) If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion. Explanation: Zn(l) + HgO (s) → Zn(s) + Hg (...
(a) If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion. Explanation: In a Daniel cell, Zn|Zn2+ ||...
(a) If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion. Explanation: Reduction potential of Mn3+ is...
(a) If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion. Explanation: Galvanised iron does not rust ...
(d) If both the Assertion and Reason are incorrect. Explanation: Copper lies below hydrogen in electrochemical series so it cannot displace H2 fro...
(e) If the Assertion is incorrect but the Reason is correct. Explanation: Copper does not liberate hydrogen from HCl because copper is above hydro...
(a) If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion. Explanation: Water is a covalent compound, ...
(e) If the Assertion is incorrect but the Reason is correct. Explanation: Electrical conductivity of every metal decreases with increase in temper...
(d) 1.57 V Explanation: Here n = 4, and [H+] = 10-3 (as pH = 3) Applying Nernst equation 2s.png
(c) Fe3+ Explanation: From the given data we find Fe3+ is strongest oxidising agent. More the positive value of E°, more is the tendency to get ox...