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Which of the following is an analgesic?CorrectIncorrect
Which of the following arrangements does not represent the correct order of the property stated against it?CorrectIncorrect
A red solid is insoluble in water. However, it becomes soluble if some KI is added to water. Heating the red solid in a test tube results in liberation of some violet coloured fumes and droplets of a metal appear on the cooler parts of the test tube. The red solid isCorrectIncorrect
Bulletproof helmets are made fromCorrectIncorrect
When Cl2 gas reacts with hot and concentrated sodium hydroxide solution, the oxidation number of chlorine changes fromCorrectIncorrect
The correct order of increasing bond angles in the following species isCorrectIncorrect
Consider the reaction,
Cl2 (aq) + H2S (aq) → S(s) + 2H+(aq) + 2Cl–(aq)
The rate equation for this reaction is, rate = k [Cl2] [H2S]
Which of these mechanisms is/are consistent with this rate equation?
(a). Cl2 + H2S → H+ + Cl– + Cl+ + HS– (slow)
Cl+ + HS– → H+ + Cl– + S (fast)
(b). H2S H+ + HS– (fast equilibrium)
Cl2 + HS– → 2Cl– + H+ + S (slow)CorrectIncorrect
The time for half life period of a certain reaction A → Products is 1 h. When the initial concentration of the reactant ‘A’ is 2.0 mol L–1, how much time does it take for its concentration to come from 0.50 to 0.25 mol L–1, if it is a zero order reaction?CorrectIncorrect
Resistance of 0.2 M solution of an electrolyte is 50 W. The specific conductance of the solution is 1.3 S m–1. If resistance of the 0.4 M solution of the same electrolyte is 260 W, its molar conductivity isCorrectIncorrect
The standard emf of galvanic cell involving 3 moles of electrons in its redox reaction is 0.59 V. The equilibrium constant for the reaction of the cell isCorrectIncorrect