Q. What is the pH of a 0.01 M solution of Na2CO3?
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Solution
Na2CO3 is a basic salt, pH is approximately 11.5.
Correct Answer:
C
— 12
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Q. What is the pH of a 0.01 M solution of NaOH?
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Solution
pOH = -log(0.01) = 2; pH = 14 - pOH = 14 - 2 = 12.
Correct Answer:
B
— 13
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Q. What is the pH of a 0.01 M solution of phosphoric acid (H3PO4)?
A.
1.0
B.
2.0
C.
3.0
D.
4.0
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Solution
H3PO4 is a triprotic acid; for a dilute solution, the first dissociation dominates, giving pH ≈ 2.
Correct Answer:
B
— 2.0
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Q. What is the pH of a 0.05 M acetic acid solution (Ka = 1.8 x 10^-5)? (2023)
A.
2.9
B.
3.1
C.
4.0
D.
4.7
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Solution
Using the formula for weak acids, pH = 0.5(pKa - log[C]) where pKa = -log(1.8 x 10^-5) ≈ 4.74. pH = 0.5(4.74 - log(0.05)) ≈ 4.7.
Correct Answer:
D
— 4.7
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Q. What is the pH of a 0.05 M solution of NaCl?
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Solution
NaCl is a neutral salt, so the pH remains 7.
Correct Answer:
A
— 7
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Q. What is the pH of a 0.1 M solution of ammonium chloride (NH4Cl)? (2019) 2019
A.
5.10
B.
4.75
C.
6.00
D.
7.00
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Solution
NH4Cl is a salt of a weak base and strong acid, pH < 7. Calculate using hydrolysis: pH ≈ 4.75.
Correct Answer:
B
— 4.75
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Q. What is the pH of a 0.1 M solution of K2CO3?
A.
9.0
B.
10.0
C.
11.0
D.
12.0
Show solution
Solution
K2CO3 is a salt of a weak acid (H2CO3) and strong base (KOH), resulting in a basic solution with pH around 10.
Correct Answer:
B
— 10.0
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Q. What is the pH of a 0.1 M solution of K2SO4? (2023)
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Solution
K2SO4 is a neutral salt formed from a strong acid (H2SO4) and a strong base (KOH). Therefore, the pH of the solution is 7.
Correct Answer:
A
— 7
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Q. What is the pH of a 0.1 M solution of NH4Cl?
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Solution
NH4Cl is an acidic salt, pH is approximately 5.1.
Correct Answer:
B
— 6
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Q. What is the pH of a 0.1 M solution of sodium acetate (Ka for acetic acid = 1.8 x 10^-5)?
A.
4.75
B.
5.25
C.
9.25
D.
10.25
Show solution
Solution
Using the formula for salt of weak acid, pH = 14 + 0.5(pKa + logC) = 14 + 0.5(4.74 + log(0.1)) = 9.25.
Correct Answer:
C
— 9.25
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Q. What is the pH of a 0.1 M solution of sodium bicarbonate (NaHCO3)? (2022) 2022
A.
8.00
B.
9.00
C.
7.00
D.
6.00
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Solution
NaHCO3 is a weak base, pH ≈ 8.00 due to its bicarbonate ion acting as a weak base.
Correct Answer:
A
— 8.00
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Q. What is the pH of a 0.1 M solution of sulfuric acid (H2SO4)?
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Solution
H2SO4 is a strong acid; it dissociates completely, so [H+] = 0.1 M; pH = -log(0.1) = 1.
Correct Answer:
B
— 2
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Q. What is the pH of a buffer solution made from 0.1 M acetic acid and 0.1 M sodium acetate? (2023)
A.
4.74
B.
5.00
C.
5.74
D.
6.00
Show solution
Solution
Using the Henderson-Hasselbalch equation, pH = pKa + log([A-]/[HA]) = 4.74 + log(1) = 4.74.
Correct Answer:
A
— 4.74
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Q. What is the pH of a neutral solution at 25°C? (2023) 2023
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Solution
At 25°C, the pH of a neutral solution is 7.
Correct Answer:
B
— 7
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Q. What is the pH of a solution formed by mixing 25 mL of 0.1 M HCl with 25 mL of 0.1 M NaOH? (2020) 2020
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Solution
HCl and NaOH neutralize each other, resulting in a neutral solution with pH = 7.
Correct Answer:
A
— 7
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Q. What is the pH of a solution that is 0.01 M in both HCl and NaOH?
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Solution
HCl and NaOH neutralize each other, resulting in a neutral solution with pH = 7.
Correct Answer:
C
— 7
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Q. What is the pH of a solution when 0.1 M of Na2CO3 is dissolved in water? (2023)
A.
10.3
B.
11.0
C.
11.5
D.
12.0
Show solution
Solution
Na2CO3 is a salt of a weak acid (H2CO3) and a strong base (NaOH). The pH can be estimated using the hydrolysis of CO3^2- which gives a pH around 11.0.
Correct Answer:
B
— 11.0
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Q. What is the pH of a solution with 0.01 M of a weak acid with a Ka of 1.0 x 10^-5? (2023) 2023
A.
4.00
B.
5.00
C.
3.00
D.
6.00
Show solution
Solution
Using the formula for weak acids, pH = 0.5(pKa - logC) = 0.5(4.00 - log(0.01)) = 5.00.
Correct Answer:
B
— 5.00
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Q. What is the pH of a solution with a hydrogen ion concentration of 0.001 M? (2022)
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Solution
pH = -log[H+]. pH = -log(0.001) = 3.
Correct Answer:
A
— 3
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Q. What is the pH of a solution with [H+] = 0.00001 M?
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Solution
pH = -log(0.00001) = 5.
Correct Answer:
B
— 6
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Q. What is the pH of a solution with [H+] = 1 x 10^-7 M? (2023)
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Solution
pH = -log[H+] = -log(1 x 10^-7) = 7.
Correct Answer:
A
— 7
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Q. What is the phase angle in a circuit with a resistance of 30 ohms and a reactance of 40 ohms? (2021)
A.
53.13°
B.
36.87°
C.
45°
D.
60°
Show solution
Solution
θ = tan⁻¹(X/R) = tan⁻¹(40/30) = 53.13°.
Correct Answer:
A
— 53.13°
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Q. What is the phase difference between the voltage and current in a purely resistive AC circuit? (2021)
A.
0°
B.
45°
C.
90°
D.
180°
Show solution
Solution
In a purely resistive circuit, the voltage and current are in phase, so the phase difference is 0°.
Correct Answer:
A
— 0°
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Q. What is the phase difference between the voltage and current in a resistive AC circuit? (2021)
A.
0°
B.
45°
C.
90°
D.
180°
Show solution
Solution
In a purely resistive circuit, the voltage and current are in phase, so the phase difference is 0°.
Correct Answer:
A
— 0°
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Q. What is the phase difference between the voltage and current in a series RLC circuit at resonance? (2023)
A.
0°
B.
90°
C.
180°
D.
45°
Show solution
Solution
At resonance in a series RLC circuit, the phase difference between voltage and current is 0°.
Correct Answer:
A
— 0°
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Q. What is the phase difference between two particles in a wave that are 1/4 wavelength apart? (2019)
A.
0 rad
B.
π/2 rad
C.
π rad
D.
3π/2 rad
Show solution
Solution
Phase difference (Δφ) = 2π × (distance / wavelength) = 2π × (1/4) = π/2 rad.
Correct Answer:
B
— π/2 rad
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Q. What is the phase difference between two particles in the same medium oscillating in phase? (2023)
A.
0 radians
B.
π/2 radians
C.
π radians
D.
2π radians
Show solution
Solution
If two particles are in phase, the phase difference is 0 radians.
Correct Answer:
A
— 0 radians
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Q. What is the phase difference between two particles in the same phase of oscillation? (2022)
A.
0 radians
B.
π/2 radians
C.
π radians
D.
2π radians
Show solution
Solution
The phase difference between two particles in the same phase of oscillation is 0 radians.
Correct Answer:
A
— 0 radians
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Q. What is the phase difference between two particles in the same wave at a distance of half a wavelength? (2022)
A.
0 radians
B.
π/2 radians
C.
π radians
D.
3π/2 radians
Show solution
Solution
The phase difference between two points separated by half a wavelength is π radians.
Correct Answer:
C
— π radians
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Q. What is the phase difference between two points on a wave that are 1/4 of a wavelength apart? (2021)
A.
0 rad
B.
π/2 rad
C.
π rad
D.
3π/2 rad
Show solution
Solution
The phase difference Δφ is given by Δφ = (2π/λ) * Δx. For Δx = λ/4, Δφ = (2π/λ) * (λ/4) = π/2 rad.
Correct Answer:
B
— π/2 rad
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Showing 1921 to 1950 of 2530 (85 Pages)
MHT-CET MCQ & Objective Questions
The MHT-CET exam is a crucial stepping stone for students aspiring to pursue engineering and pharmacy courses in Maharashtra. Mastering the MHT-CET MCQ format is essential, as it not only tests your knowledge but also enhances your exam preparation strategy. Practicing objective questions helps in identifying important concepts and improves your chances of scoring better in this competitive exam.
What You Will Practise Here
Fundamental concepts in Physics, Chemistry, and Mathematics
Key formulas and their applications in problem-solving
Important definitions and terminologies relevant to MHT-CET
Diagrams and illustrations for better conceptual understanding
Practice questions that mirror the exam pattern
Analysis of previous years' MHT-CET questions
Techniques for tackling tricky MCQs effectively
Exam Relevance
The MHT-CET exam is aligned with the syllabus of CBSE, State Boards, and is also relevant for students preparing for NEET and JEE. Many concepts from the MHT-CET syllabus appear in these competitive exams, often in the form of application-based questions or conceptual MCQs. Understanding the common question patterns can significantly enhance your preparation and performance.
Common Mistakes Students Make
Misinterpreting questions due to lack of clarity in reading
Neglecting to review fundamental concepts before attempting MCQs
Overlooking units and dimensions in Physics and Chemistry problems
Rushing through practice questions without thorough understanding
Failing to manage time effectively during the exam
FAQs
Question: What are the best resources for MHT-CET MCQ questions?Answer: Utilizing online platforms like SoulShift, which offer a variety of practice questions and mock tests, can be very beneficial.
Question: How can I improve my speed in solving MHT-CET objective questions?Answer: Regular practice and timed mock tests can help enhance your speed and accuracy in solving MCQs.
Start your journey towards success by solving MHT-CET practice MCQs today! Test your understanding and build your confidence for the exam ahead.
