Solved question paper for Chem Dec-2023 (B-TECH 1st-2nd)

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Chemistry Dec-2023

PTU • B-TECH • Civil Engineering • 1st-2nd • Dec-2023

Chemistry previous year question papers on BRpaper are organized for students of Punjab Technical University’s Bachelor of Technology program, 1st-2nd semester. This section makes it easier to browse subject-wise old question papers for Chemistry, so students can review how questions are typically framed in past exams and get a sense of the exam pattern. Many students search for chemistry syllabus while preparing for exams, and this page is built to support exactly that kind of subject-wise browsing and revision. BRpaper is not the official website of Punjab Technical University or any institution, and it does not publish official notices or academic updates.

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SECTION -B & C have FOUR questions each.

Short Answer Dec-2023 • PTU B-TECH

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May 2025 SECTION -B &C. have FOUR questions each.

Dec 2024 SECTION -B&C have FOUR questions each.

Dec 2024 SECTION-Bac have FOUR questions each, ;

May 2023 SECTION - B & C have FOUR questions each, carrying EIGHT mark s each.

Dec 2023 SECTION -B & C. have FOUR questions each.

Dec 2020 SECTION -B &C. have FOUR questions each.
Select atleast TWO questions from SECTION-B&C.

Short Answer Dec-2023 • PTU B-TECH

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May 2025 Select at least TWO questions from SECTION -B &C.

Dec 2024 Select atleast TWO questions from SECTION -B & C.

Dec 2024 Select atleast TWO questions from SECTION-B&C. . SECTION-A

Dec 2024 Select atleast TWo questions from SECTION -B 8 C. : - SECTION-A

Dec 2020 Select atleast TWO questions from SECTION -B &C.
Write briefly: [s( oneal >) 1 Lidrary /@ ;'

Short Answer Dec-2023 • PTU B-TECH

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What are N type and p-type semiconductors? ae od

Short Answer Dec-2023 • PTU B-TECH

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What are Chromophores? Give examples. Yec-2cas

Short Answer Dec-2023 • PTU B-TECH

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Out ofthe following compounds write which,are aromatic or antiaromatic.

Short Answer Dec-2023 • PTU B-TECH

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Distinguish between an Ideal gas and Real gas. ¢) What is electrochemical corrosion? Discuss.

Short Answer Dec-2023 • PTU B-TECH

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What is Markownik of Rule? Give an example. gv) What is Lewis concept of Acids and Bases? 1 |

Short Answer Dec-2023 • PTU B-TECH

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Why electron affinity of noble gases are Zero?

Short Answer Dec-2023 • PTU B-TECH

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Assign R/S configuration to each of the following compounds. Cl H i} | ii) — nCGsH: H Br

Short Answer Dec-2023 • PTU B-TECH

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Complete the following reaction: CH; KMnO:/OH"__, 4 SECTION-B

Short Answer Dec-2023 • PTU B-TECH

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Explain crystal field theory in detail. Mow, it can be utilized in explaining the octahedral complexes of transition metal ions.

Short Answer Dec-2023 • PTU B-TECH

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Differentiate between bonding and antibonding molecular orbitals.

Short Answer Dec-2023 • PTU B-TECH

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Dec 2023 b) Differentiate between Bonding and Antibonding molecular orbital.
Define the following terms:

Short Answer Dec-2023 • PTU B-TECH

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May 2025 Explain the following terms :

Dec 2023 Explain the following terms with example :

Dec 2023 Explain the following :

Dec 2020 Explain the following terms :
Bathochromic shiff byAuxochromes __ c) fluorescence d) hyperchromic shift

Short Answer Dec-2023 • PTU B-TECH

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Explain in detail the vander waal Equation of state for real gases.

Short Answer Dec-2023 • PTU B-TECH

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Dec 2024 a) What is the van der Waals equation of state, and how does it describe the behavior of real gases?

Dec 2024 What is the van der Waals equation of state, and how does it describe the behavior of real pases?

The emf. of the cell reaction 3Sn77+ 2Cr>3Sn** + 2Cr? is 0.89, Calculate the standard free energy change for thereaction.

Short Answer Dec-2023 • PTU B-TECH

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Discuss the Zeolite process for softening of water. 2 |

Short Answer Dec-2023 • PTU B-TECH

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Dec 2024 How does the zeolite process work in softening of hard water?

Dec 2024 How does the zeolite process work in softening of hard water? &) What is the hardness of ‘Water? Differentiate between temporary and permanent hardness,
Explain why:

Short Answer Dec-2023 • PTU B-TECH

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Dec 2023 Give reason for the following :
Electron affinity of fluorine is less than that of chlorine.

Short Answer Dec-2023 • PTU B-TECH

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lonisation energy decreases down the group and increases along the period. ¢) Which has the smallest size (Cl or Cl) and why?

Short Answer Dec-2023 • PTU B-TECH

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Whatis diastereomerism? Explain by giving at Icast two examples.

Short Answer Dec-2023 • PTU B-TECH

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May 2025 What is the difference between enantiomers and diastereomers?

May 2025 What is enantiomerism? Explain the requirement for enantiomerism.

Dec 2024 b) What is chirality and explain why certain molecules are chiral?

Dec 2024 What is optical activity and how can it be used to distinguish between enantiomers?

Dec 2024 What are the differences between diastereoisomer and enantiomer?

Dec 2024 What are the differences between diastereoisomer and enantiomer?

Dec 2024 What is optical activity and how it can be used to distinguish between enantiomers?

Dec 2024 What is chirality and explain why certain molecules are Chiral?

Dec 2023 a)“ Define chirality. What are chiral molecules?
Discuss the conformational analysis of propane.

Short Answer Dec-2023 • PTU B-TECH

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May 2025 Describe the conformational analysis of butane.

Dec 2023 a) Describe the conformational analysis of butane.
Complete the following reactions: fi "i Mgnt a fl os . ch Kol P bh OTE COMET + off —_—__ > 450K oo of * oH —— V ir ; xe FP thar a och IN =—— ~~ Crt Bs

Short Answer Dec-2023 • PTU B-TECH

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Explain the following :

Short Answer Dec-2023 • PTU B-TECH

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May 2025 Explain the following terms :

Dec 2023 Explain the following terms with example :

Dec 2023 Define the following terms:

Dec 2020 Explain the following terms :
HSAB principle

Short Answer Dec-2023 • PTU B-TECH

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Enatiomerism

Short Answer Dec-2023 • PTU B-TECH

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Electronegativity

Short Answer Dec-2023 • PTU B-TECH

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Free energy. NOTE : Disclosure of Identity by writing Mobile No. or Marking of passing request on any paper of Answer Sheet will lead to UMC against the Student. 3 |

Short Answer Dec-2023 • PTU B-TECH

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May 2023 Reduction reactions NOTE : Disclosure of Identity by writing Mobile No. or Marking of passing request on any paper of Answer Sheet will lead to UMC against the Student.

Dec 2020 Ring opening reactions (2) NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any page of Answer Sheet will lead to UMC against the Student. 3 | M-75343 (S1)-734

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01 Where can I find Chemistry previous year question papers for Bachelor of Technology, 1st-2nd semester?

This page lists Chemistry question papers uploaded for Punjab Technical University Bachelor of Technology, 1st-2nd semester, organized for subject-wise browsing where available.

02 Are these official Punjab Technical University question papers?

BRpaper is not the official website of Punjab Technical University. These papers are shared for reference and revision purposes only and are not official university material.

03 How can previous year Chemistry papers help in exam preparation?

Reviewing past papers can help you understand how questions are typically framed, notice commonly repeated topics, and get a sense of the exam pattern before your own exam.

04 What kind of topics does Chemistry usually cover?

The question papers here relate to the official Chemistry syllabus set by the university for this course and semester.

05 Does this page include a Chemistry syllabus or solved answers?

This page focuses on providing access to the previous year question papers themselves. A separate question bank or solved answers may not be available for every paper.

06 Can I find papers for other subjects in the same Bachelor of Technology?

Yes, BRpaper organizes papers by university, course, stream, and semester, so you can browse other subjects within the same Punjab Technical University Bachelor of Technology.

Solved question paper for Chem Dec-2023 (B-TECH 1st-2nd)

Chemistry Dec-2023

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