Comprehension
Based on the context given below, answer the following questions:
Glycine is most often used as a buffering agent in biochemical experiments. This diprotic amino acid has a pKa value of 2.4 owing to carboxyl group and 9.6 owing to amino group. Glycine can exist as a zwitterion which can exist in either protonated form\((NH^+_3 )\) or as a free base \((-NH_2)\)because of the reversible reaction:
Glycine is most often used as a buffering agent in biochemical experiments. This diprotic amino acid has a pKa value of 2.4 owing to carboxyl group and 9.6 owing to amino group. Glycine can exist as a zwitterion which can exist in either protonated form\((NH^+_3 )\) or as a free base \((-NH_2)\)because of the reversible reaction:
Question: 1
The characteristic pH, at which the net electric charge is zero, achieved at
The characteristic pH, at which the net electric charge is zero, achieved at
Updated On: Mar 18, 2024
- 2.4
- 6.0
- 7.5
- 9.6
Hide Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
The correct option is(B): 6.0
Was this answer helpful?
0
0
Question: 2
In 0.1 M solution of glycine at pH 9.0, what fraction of glycine has its amino group in \(-NH^+_3\)form?
In 0.1 M solution of glycine at pH 9.0, what fraction of glycine has its amino group in \(-NH^+_3\)form?
Updated On: Mar 18, 2024
- \(\frac{4}{5}\)
- \(\frac{1}{5}\)
- \(\frac{4}{6}\)
- \(\frac{5}{6}\)
Hide Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
The correct option is(A): \(\frac{4}{5}\)
Was this answer helpful?
0
0
Question: 3
Glycine is highly conserved amino acid because
Glycine is highly conserved amino acid because
Updated On: Mar 18, 2024
- it allows polypeptide chain to make turns
- it exists as zwitterion
- its a-carbon is bonded to four different groups
- it induces polarity
Hide Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
The correct option is(B): it allows polypeptide chain to make turns
Was this answer helpful?
0
0
Top Questions on pH value
- The pKa of a buffer solution with pH of 5, consisting of 0.4 M sodium acetate and 0.04 M acetic acid, is ____. (Answer in integer)
- The ionic product of water at \(40^\circ \mathrm{C}\) is \(2.92 \times 10^{-14} \, \mathrm{M}^2\). The pH of water at \(40^\circ \mathrm{C}\) is _______ (rounded off to 2 decimal places).
- The ionic product of water at 40 °C is \( 2.92 \times 10^{-14} \, \text{M}^2 \). The pH of water at 40 °C is __________ (rounded off to 2 decimal places).
- The ionic product of water at 40 °C is \( 2.92 \times 10^{-14} \, \text{M}^2 \). The pH of water at 40 °C is __________ (rounded off to 2 decimal places).
- If pH of rain water is less than ____ ,then it is called acid rain.
View More Questions
Questions Asked in CUET PG exam
- What is the correct verb form: He, as well as his friends, ?
- Which preposition is correct: Chanakya lived ?
- CUET (PG) - 2025
- Prepositions
- Identify the possessive noun: My office car is parked elsewhere.
- Which tense is appropriate: How did Saira ?
- Complete the sentence: There is a growing synthesis between humanism and ?
- CUET (PG) - 2025
- Sentence Completion
View More Questions