Refer to NEET Chemistry Equilibrium MCQs Set C provided below. NEET Full Syllabus Chemistry MCQs with answers available in Pdf for free download. The MCQ Questions for Full Syllabus Chemistry with answers have been prepared as per the latest syllabus, NEET books and examination pattern suggested in Full Syllabus by NEET, NCERT and KVS. Multiple Choice Questions for Equilibrium are an important part of exams for Full Syllabus Chemistry and if practiced properly can help you to get higher marks. Refer to more Chapter-wise MCQs for NEET Full Syllabus Chemistry and also download more latest study material for all subjects
MCQ for Full Syllabus Chemistry Equilibrium
Full Syllabus Chemistry students should refer to the following multiple-choice questions with answers for Equilibrium in Full Syllabus. These MCQ questions with answers for Full Syllabus Chemistry will come in exams and help you to score good marks
Equilibrium MCQ Questions Full Syllabus Chemistry with Answers
Question: The hydrogen ion concentration of a 10–8 M HCl aqueous solution at 298 K (Kw= 10–14) is
- a) 1.0 × 10–6 M
- b) 1.0525 × 10–7 M
- c) 9.525 × 10–8 M
- d) 1.0 × 10–8 M
Answer: 1.0525 × 10–7 M
Question: At 25°C, the dissociation constant of a base, BOH, is 1.0 × 10–12. The concentration of hydroxyl ions in 0.01M aqueous solution of the base would be
- a) 2.0 × 10–6 mol L–1
- b) 1.0 × 10–5 mol L–1
- c) 1.0 × 10–6 mol L–1
- d) 1.0 × 10–7 mol L–1
Answer: 1.0 × 10–7 mol L–1
Question: Equilibrium constants K1 and K2 for the following equilibria:
are related as
- a)
- b) K2= K12
- c)
- d)
Answer:
Question: H2S gas when passed through a solution of cations containing HCl precipitates the cations of second group of qualitative analysis but not those belonging to the fourth group. It is because
- a) Presence of HCl decreases the sulphide ion concentration
- b) Presence of HCl increases the sulphide ion concentration
- c) Solubility product of group II sulphides is more than that of group IV sulphides
- d) Sulphides of group IV cations are unstable in HCl
Answer: Presence of HCl decreases the sulphide ion concentration
Question: The dissociation constant of a weak acid is 1 × 10–4. In order of prepare a buffer solution with a pH = 5 the [Salt]/[Acid] ratio should be
- a) 1 : 10
- b) 4 : 5
- c) 10 : 1
- d) 5 : 4
Answer: 10 : 1
Question: Which one of the following is not acid-base conjugate pair?
- a) HONO, NO2–
- b) CH3NH3+, CH3NH2
- c) C6H5– COOH, C6H5COO–
- d) H3O+, OH–
Answer: H3O+, OH–
Question:
For the reactions
The relation between K1, K2, K3 is
- a) K3= K1+ K2
- b) K3= K1K2
- c) K3= K1/K2
- d) K3= K2/K1
Answer: K3= K1K2
Question: Given exothermic reaction
Which one of the following will decrease the equilibrium concentration of ?
- a) Addition of HCl
- b)
- c) The solution is diluted with water
- d) The temperature is increased
Answer: The solution is diluted with water
Question: For preparing a buffer solution of pH = 7.0, which buffer system you will choose?
- a)
- b)
- c)
- d)
Answer:
Question: For a chemical reaction of the type
Equilibrium constant for the reaction
- a) 25
- b) 50
- c) 2500
- d) 4 × 10–4
Answer: 2500
More Questions.................................
Question: A solution is 0.1 M with respect to Ag+, Ca2+, Mg2+ and Al3+ which will precipitate at lowest concentration of
when solution of Na3PO4 is added ?
- a) Ag3PO4(Ksp= 1 × 10–6)
- b) Ca3(PO4)2(Ksp= 1 × 10–33)
- c) Mg3(PO4)2(Ksp= 1 × 10–24)
- d) AlPO4(Ksp= 1 × 10–20)
Answer: AlPO4(Ksp= 1 × 10–20)
Question: At 100°C the Kw of water is 55 times its value at 25°C. What will be the pH of neutral solution?(log 55 = 1.74)
- a) 6.13
- b) 7.00
- c) 7.87
- d) 5.13
Answer: 6.13
Question: Which one of the following species acts only as a base?
- a) H2S
- b) HS–
- c) S2–
- d) H2O
Answer: S2–
Question: Which one of the following is most soluble?
- a) Bi2S3(Ksp= 1 × 10–70)
- b) Ag2S (Ksp= 6 × 10–51)
- c) CuS (Ksp= 8 × 10–37)
- d) MnS (Ksp= 7 × 10–16)
Answer: MnS (Ksp= 7 × 10–16)
Question: The pH value of blood does not appreciably change by a small addition of an acid or a base, because the blood
- a) Can be easily coagulated
- b) Contains iron as a part of the molecule
- c) Is a body fluid
- d) Contains serum protein which acts as buffer
Answer: Contains serum protein which acts as buffer
Question: The pH value of 10–7 M solution HCl is
- a) Equal to 1
- b) Equal to 2
- c) Less than 7
- d) Equal to 0
Answer: Less than 7
Question: At 80°C, distilled water has [H3O+] concentration equal to 1 × 10–6 mole/litre. The value of Kw at this temperature will be
- a) 1 × 10–12
- b) 1 × 10–15
- c) 1 × 10–6
- d) 1 × 10–9
Answer: 1 × 10–12
Question: Standard state Gibb’s free energy change for isomerization reaction
is pentene is –3.67 kJ/mol at 400 K. If more trans-2-pentene is added to the reaction vessel, then
- a) Equilibrium remains unaffected
- b) Equilibrium is shifted in the forward direction
- c) More cis-2-pentene is formed
- d) Additional trans-2-pentene is formed
Answer: More cis-2-pentene is formed
Question: The ionic product of water at 25°C is 10–14. Its ionic product at 90°C will be
- a) 1 × 10–14
- b) 1 × 10–16
- c) 1 × 10–20
- d) 1 × 10–12
Answer: 1 × 10–12
Question: If α is degree of dissociation, then the total number of moles for the reaction starting with 1 mole of HI 2HI =H2+ I2 will be
- a) 1
- b) 1 – α
- c) 2
- d) 2 – α
Answer: 1
Question: Which of the following is not a Lewis acid?
- a) SiF4
- b) C2H4
- c) BF3
- d) FeCl3
Answer: C2H4
Question: The solubility product of CuS, Ag2S and HgS are 10–31, 10–44, 10–54 respectively. The solubilities of these sulphides are in the order
- a) HgS > Ag2S > CuS
- b) CuS > Ag2S > HgS
- c) Ag2S > CuS > HgS
- d) AgS > HgS > CuS
Answer: Ag2S > CuS > HgS
Question: The concentration of [H+] and concentration of [OH– ] of a 0.1 M aqueous solution of 2% ionised weak acid is [ionic product of water = 1 × 10–14]
- a) 2 × 10–3 M and 5 × 10–12 M
- b) 1 × 10–3 M and 3 × 10–11 M
- c) 0.02 × 10–3 M and 5 × 10–11 M
- d) 3 × 10–2 M and 4 × 10–13 M
Answer: 2 × 10–3 M and 5 × 10–12 M
Question: The solubility of a saturated solution of calcium fluoride is 2 × 10–4 moles per litre. Its solubility product is
- a) 22 × 10–11
- b) 14 × 10–4
- c) 2 × 10–2
- d) 32 × 10–12
Answer: 32 × 10–12
Question: Conjugate acid of NH2–
- a) NH4OH
- b) NH4+
- c) NH2–
- d) NH3
Answer: NH3
Question: The values of Ksp of CaCO3 and CaC2O4 are 4.7 × 10–9 and 1.3 × 10–9 respectively at 25°C. If the mixture of these two is washed with water, what is the concentration of Ca2+ ions in water?
- a) 7.746 × 10–5 M
- b) 5.831 × 10–5 M
- c) 6.856 × 10–5 M
- d) 3.606 × 10–5 M
Answer: 7.746 × 10–5 M
Question: Which statement is wrong about pH?
- a) pH of pure water is not zero
- b) Adding 1 N, solution of CH3COOH and 1 N NaOH pH will be seven
- c) pH of dilute and hot H2SO4 is less than 7
- d) Mixing solution of CH3COOH and HCl, pH will be less than 7
Answer: Adding 1 N, solution of CH3COOH and 1 N NaOH pH will be seven
Question: Solution of 0.1 N NH4OH and 0.1 N NH4Cl has pH 9.25. Then find out pKb of NH4OH
- a) 9.25
- b) 4.75
- c) 3.75
- d) 8.25
Answer: 4.75
Question: Ionisation constant of CH3COOH is 1.7 × 10–5 and concentration of H+ ions is 3.4 × 10–4. Then find out initial concentration of CH3COOH molecules
- a) 3.4 × 10–4
- b) 3.4 × 10–3
- c) 6.8 × 10–4
- d) 6.8 × 10–3
Answer: 6.8 × 10–3
Question: Which of the following molecules acts as a Lewis acid?
- a) (CH3)3N
- b) (CH3)3B
- c) (CH3)2O
- d) (CH3)3P
Answer: (CH3)3B
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NEET Full Syllabus Chemistry Equilibrium MCQs
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NEET MCQs Chemistry Full Syllabus Equilibrium
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