InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 251. |
In the galvanic cell shown below, which arrow indicates the spontaneous electron flow? A. AB. BC. CD. D |
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Answer» Correct Answer - B |
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| 252. |
Which statements is true about a spontaneous cell reaction in galvanic cell?A. `E_(cell)^(@) gt 0, DeltaG^(@) lt 0 and Q lt K`B. `E_(cell)^(@) gt 0, DeltaG^(@) lt 0 and Q gt K`C. `E_(cell)^(@) gt 0, DeltaG^(@) gt 0 and Q gt K`D. `E_(cell)^(@) gt 0, DeltaG^(@) lt 0 and Q lt K` |
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Answer» Correct Answer - D |
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| 253. |
During the preparation of `H_(2)S_(2)O_(8)` (per disulphuric acid) `O_(2)` gas also releases at anod as byproduct, when 9.85 L of `H_(2)` releases at cathode and 2.38 L `O-92)` at anode at STP, the weight of `H_(2)S_(2)O_(8)` produced in gram is:A. 87B. 43.5C. 83.42D. 48.5 |
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Answer» Correct Answer - B |
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| 254. |
Electrolytic reduction of 6.15 g of nitrobenzene using a current efficiency of `40%` will require which of the following quantity of electricity? [C =12, H=1, N=14,O=16]A. 0.75 FB. 0.15 FC. 0.75 CD. 0.125C |
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Answer» Correct Answer - A |
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| 255. |
All of the following affect the number of "mole"s of metal deposited during electrolysis except the:A. current usedB. electrolysis timeC. charge on the ionD. atomic mass |
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Answer» Correct Answer - B |
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| 256. |
A certain current liberates `0.5g` of hydrogen in 2 hours. How many grams of copper can be liberated by the same current flowing for the same time in a copper sulphate solution ?A. 31.8 gB. 16.0 gC. 12.7 gD. 63.5 g |
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Answer» Correct Answer - B |
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| 257. |
Given the equivalent conductance of sodium butyrate, sodium chloride and hydrogen chloride as 83, 127 and 426 mho `cm^(2)` `eq^(-1)` at `25^(@)C` respectively. Calculate the equivalent the equivalent conductance of butryric acid at infinite dilution in same units. |
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Answer» Correct Answer - 380 |
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| 258. |
`10Cl^(-)(aq) + 2MnO_(4)^(-)(aq) + 16H^(+)(aq) rightarrow 5Cl_(2)(g) + 2Mn^(2+0()aq) + 8H_92)O(l)` The value of `E^(@)` for this reaction at `25^(@)C` is 0.15 V. What is the value of K for this reaction?A. `2.6 xx 10^(25)`B. `4.9 xx 10^(12)`C. `1.3 xx 10^(5)`D. `3.4 xx 10^(2)` |
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Answer» Correct Answer - A |
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