Last seen: Jul 5, 2023
(a) This plant will not remain healthy for long because vaseline coating closes the stomatal pores on the leaves due to which (i) plant will not ge...
(a) If all the green plants disappear from the earth, then all the organisms (herbivores, carnivores and omnivores) will die due to starvation as gree...
(a) The opening and closing of stomatal pores is controlled by the guard cells, when water flows into the guard cells, they swell, become curved and c...
(a) Herbivores eat only plants so they need a longer small intestine to allow the cellulose present in the plants to be digested completely. (b) If...
(a) Parasitic mode of nutrition. (b) (i) Proteins (ii) Starch (iii) Proteins (iv) Fats. (c) Absorption of digested foods occurs mainly ...
(i) – (c) (ii) – (d) (iii) – (a) (iv) – (b)
Correct answer: (b) K1 = = Explanation: (I) N2 + 2O2 + K1 ⇌ 2NO2 K1 = .....(i) (II) 2NO2 + K2 ⇌ N2 + 2O2 K2 = ......(ii) (III) NO2 ...
Correct answer: (d) (ΔG)T, P is zero and (ΔS)U,V is also zero Explanation: The condition for the equilibrium is (ΔG)T, P = 0 and (ΔS)U,V = 0
Correct answer: (a) Explanation: Kp = Kc(RT)Δng For the reaction CO(g) + 1/2O2(g) ⇌ CO2(g) Δng = 1 - (1 + ) = - ∴ Kp = ; =
Correct answer: (a) the sample of ammonia obtained after some time will be radioactive. Explanation: Since T2 has similar chemical properties as H...
Correct answer: (c) 50 Explanation: H2(g) + I2(g) ⇌ 2HI(g) KP = Kc(RT)Δn; Δn = 2 -2 = 0 ∴ Kp = Kc
Answer is (d) -2 RT (ln p - ln 2) Explanation: PNH3 = PH2S = atm KP = PNH3PH2S = = ΔG = -RTlnKp = -RT ln = -2 RT (ln p - ln 2)
Correct answer: (c) temperature of equilibrium Explanation: For the reaction 2BaO2(s) ⇌ 2BaO(s) + O2(g); ΔH = +ve. At equilibrium KP = PO2 H...
Correct answer: (b) 4 Explanation: A + 2B ⇌ 2C + D a 1.5a 0 0 (a-x) (1.5a-2x) 2x x Hence Kc = Given, at equilibrium ∴ (a - x...
Correct answer: (c) The temperature will increase. Explanation: By addition of SO2 equilibrium will shift to RHS which is exothermic. Hence temper...
Correct answer: (c) High temperature and low pressure Explanation: Since reaction is exothermic hence low temperature will favour forward reaction...
Correct answer: (1) Green seed colour
Correct answer: (2) Four
Correct answer: (1) reciprocal cross
Correct answer: (4) 100%