Doubts
Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents
Sign in to save progress →
Doubts
Sign in

Chemical Equilibrium question

2010 · Shift 0 · Q5
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Chemistry
  4. /Chemical Equilibrium
  5. /2010 · Shift 0 · Q5

Chemical Equilibrium question

2010 · Shift 0 · Q5

JEE MainChemistryChemical EquilibriumMCQ+4 / −1
In aqueous solution the ionization constants for carbonic acid are K1 = 4.2 x 10–7 and K2 = 4.8 x 10–11 Select the correct statement for a saturated 0.034 M solution of the carbonic acid.
  1. A
    The concentration of CO32−CO_3^{2−}CO32−​ is 0.034 M.
  2. B
    The concentration of CO32−CO_3^{2−}CO32−​ is greater than that of HCO3−HCO_3^{−}HCO3−​
  3. C
    The concentration of H+H^+H+ and HCO3−HCO_3^−HCO3−​ are approximately equal.
  4. D
    The concentration of H+H^+H+ is double that of CO3−CO_3^−CO3−​.
PreviousNext

More from Chemical Equilibrium

  • For the following three reactions a, b and c, equilibrium constants are given: a. CO (g) + H2​O (g) ⇋ CO2​(g) + H2​ (g) ; K1 b. CH4​ (g) + H2​O (g) ⇋ CO(g) + 3H2​ (g) ; K2 c. CH4​…2008 · MCQ
  • The equilibrium constants KP1 and KP2 for the reactions X ⇋ 2Y and Z ⇋ P + Q, respectively are in the ratio of 1 : 9. If the degree of dissociation of X and Z be equal then the ratio of total…2008 · MCQ
  • Phosphorus pentachloride dissociates as follows, in a closed reaction vessel PCl5​ (g) ⇋ PCl3​ (g) + Cl2​ (g) If total pressure at equilibrium of the reaction mixture is P and degree of dissociation of PCl5​ is…2006 · MCQ
  • The equilibrium constant for the reaction SO3​ (g) ⇋ SO2​ (g) + 21​ O2​ (g) is Kc = 4.9 × 10–2. The value of Kc for the reaction 2SO2​ (g) + O2​ (g) ⇋ 2SO3​ (g) will be :2006 · MCQ
  • An amount of solid NH4​HS is placed in a flask already containing ammonia gas at a certain temperature and 0.50 atm. Pressure. Ammonium hydrogen sulphide decomposes to yield NH3​ and H2​S gases in the flask. When the decomposition…2005 · MCQ
  • The exothermic formation of ClF3​ is represented by the equation: Cl2​ (g) + 3F2​ (g) ⇋ 2ClF3​ (g); ΔH = -329 kJ Which of the following will increase the quantity of ClF3​ in an equilibrium mixture of…2005 · MCQ
  • For the reaction 2NO2​ (g) ⇋ 2NO (g) + O2​ (g), (Kc = 1.8 × 10-6 at 184oC) (R = 0.0831 kJ/(mol. K)) When Kp and Kc are compared at 184oC , it is found that :2005 · MCQ
  • What is the equilibrium expression for the reaction P4​ (s) + 5O2​ ⇋ P4​O10​ (s)?2004 · MCQ