The ka for HX is 10-8. (d) Be(OH)2. (c) 11 = 10-4 Quiz.16 . C) will not occur spontaneously. (c) Increases as it gains electrons 2. Who discovered the chemical basis of neurotransmission … a) Bandura b) Charles sherrington c) Luigi galvani d) Otto loewi. Physical foundations Page: 20 Difficulty: 2 Ans: A Humans maintain a nearly constant level of hemoglobin by continually synthesizing and degrading it. Therefore, Ksp = 4 × s³ Na2​CO3 is salt of weak acid and strong base so it has pH is much greater than 7. NaCl is salt of strong acid and strong base so it has pH of about 7. (d) 108 y5, Answer: (d) 108 y5 Which of the following weak acids together with its sodium salt would be best to use? The acronym “OILRIG” can be used to remember this: Oxidation is Losing electrons, Reduction is Gaining electrons. Question 11. Try this amazing Equilibrium Chemical Reaction Quiz Questions quiz which has been attempted 1070 times by avid quiz takers. = 14pH Ksp = 5.3 × 10-12, Question 13. = 14 pOH It contains a mixture of weak base ammonium hydroxide and its salt (ammonium chloride) with strong acid (HCl). (d) 1.7 × 10-12, Answer: (b) 1.7 × 10-16 (d) None of these. Explanation: Barium hydroxide is a strong base for both stages of dissociation: This site provide daily practice MCQs for GPAT exam preperation. Answer: (d) Be(OH)2 Ecosystem may be defined as A species along with environment Plants found in water Plants found on land Call plants and animals species along with environment Answer:4 Q2. Nuclear Chemistry . How is the weight of the aeroplane flying in the air balanced? (c) 12.65 pOH= −log [OH–] RD Sharma Solutions , RS Aggarwal Solutions and NCERT Solutions. What is the equilibrium concentration of O 2? The composition of an equilibrium mixture is independent of the direction from which equilibrium is approached. A catalyst will change equilibrium to the left. (d) I–. Explanation: Question 6. Answer: (b) Lewis Base (c) Na2CO3 concentration of products. When equal volumes of 0.1 M NaOH and 0.01 M HCl are mixed, the hydroxide ion concentration is A producers . (d) -10, Answer: (c) 4 If you have any queries regarding CBSE Class 11 Chemistry Equilibrium MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon. Among the following hydroxides, the one which has the lowest value of Ksp at ordinary temperature (about 25°C ) is (a) 2, 5-Dihydroxy benzoic acid (pKa = 2.97) kb = 10-8 We hope the given NCERT MCQ Questions for Class 11 Chemistry Chapter 7 Equilibrium with Answers Pdf free download will help you. Which of the following mixtures in aqueous solution of equimolar concentration acts as a buffer solution? (a) 2.66 × 10-12 a. Before the reaction began, the concentrations of the reactants were 0.060 mol/L of SO 2 and 0.050 mol/L of O 2. 1. 100% reactants. 105 Questions . 12 Electrochemistry BIOLOGY 11 MCQs Chap.1 The cell Chap.2 biological molecules Chap.3 enzymes Chap.4 Bioenergetics Cjap.5 acellular life Chap.7 protists and fungi Chap. Equilibrium constant for the reaction P C L 5 P C L 3 C L 2 is 0.0205 at 230C and 1 atmospheric pressure if at equilibrium concentration of P C L 5 is 0.235 moles l i t e r-1 and that of C L 2 0.028 moles l i t-1 then conc. (c) Br– A state of body balance for an actively moving animal, when internal and external forces are in equilibrium. [OH–] = 2.0 × 10-1M Solubility product of Ag2C2O4 is Solubility product of Ag2C2O42 is Select the correct option to test your skills Current Equilibrium. c. It is a phenomenon in which a power system losses its operating equilibrium when subjected to large disturbances. CH3COONH4 is salt of weak acid and weak base so it has pH of about 7. 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