Engineering Questions — Chemistry
170 solved questions with detailed explanations
Q.58. Given below are two statements : Statement-I : The number of pairs among and that contain oxides of same nature (acidic, basic, neutral or amphoteric) is 4. Statement-II : Among and , the mos
Q.75. Consider the reaction X Y at 300 K. If and K are 28.40 kJ mol and 1.8 10 at the same temperature, then the magnitude of for the reaction in J K mol is ______.(Nearest Integer). (Given : R =
Q.56. The reaction was initiated with the amount 'a' of A(g). At equilibrium it is found that the amount of A(g) remaining is (a -x) at a total pressure of p. The equilibrium constant K of the reacti
Q.52. What is the energy (in J atom) required for the following process ? Li(g) Li(g) + e (Take the ionization energy for the H atom in the ground state as J atom)
Q.60. Given below are two statements: Statement-I: The correct order in terms of atomic/ionic radii is Al > Mg > Mg > Al. Statement-II: The correct order in terms of the magnitude of electron gain ent
Q.66. The descending order of acidity among the following compounds is A. [Figure: Phenol] B. [Figure: p-nitrophenol] C. [Figure: p-methoxyphenol] D. [Figure: Benzoic acid] E. [Figure: p-methylphenol
Q.54. At 27° C, 0.1 M, 1 L K₄[Fe(CN)₆] aqueous solution and 0.1 M, 1 L FeCl₃ aqueous solution are placed in a container separated by a semi permeable membrane AB. Assume complete dissociation of both
Q.75. For a reaction A P at T K, the half life () is plotted as a function of initial concentration of A as given below : [Figure: Graph of vs ] The value of x in the given figure is ______ s (Near
Q.64. The total number of aromatic compounds/species from the following is[Figure: Six chemical structures are shown. From left to right, top to bottom: 1. Benzene, 2. Naphthalene, 3. Anthracene, 4. C
Q.75. MX is a sparingly soluble salt that follows the given solubility equilibrium at 298 K MX(s) M⁺(aq) + X⁻(aq); K = 10⁻¹⁰ If the standard reduction potential for M⁺(aq) + e⁻ → M(s) is (E°) = 0.79V