Solved question paper for CHEM May-2018 (DIPLOMA 1st-2nd)

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Chemistry May-2018

PSBTE • DIPLOMA • Computer Engineering • 1st-2nd • May-2018

CHEM (chemistry) for Punjab State Board of Technical Education Diploma in Engineering 1st-2nd semester students is collected here as subject-wise previous year question papers and old papers for quick revision. Students can use these PYQ papers to understand the exam pattern, check repeated questions, and prepare important topics in a simple, semester-wise way. This page helps you find and download diploma question paper PDFs for CHEM and review common unit-wise questions before exams. BRpaper is not the official website of the Punjab State Board of Technical Education, and the papers here are meant for study reference and exam preparation only.

Question papers (year-wise) Solutions

Solved Questions

Solved

SECTION-A

Q1. Do as directed.

a. The chemical formula of ferric sulphate is _________.

Very Short Answer 10x1.5=15 Marks May-2018 • PSBTE DIPLOMA

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May 2015 The chemical formula of ferric sulphate is ___________.
A chemical equation in which heat is evolved is called_____________.

Very Short Answer May-2018 • PSBTE DIPLOMA

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May 2019 A chemical reaction in which heat is absorbed is known as ______ reaction.

May 2015 A chemical equation in which heat is absorbed is called ____________ reaction.
Proton was discovered by _____

Very Short Answer May-2018 • PSBTE DIPLOMA

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May 2015 Proton was discovered by ___________.
There are _________ periods in periodic table.

Very Short Answer May-2018 • PSBTE DIPLOMA

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Cations are ___________ charged ions.

Very Short Answer May-2018 • PSBTE DIPLOMA

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May 2019
Cations are _________charged ions.

May 2016
Cations are the ……………….charged ions.
The reaction of an acid with a base to form salt and water is called __________

Very Short Answer May-2018 • PSBTE DIPLOMA

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The functional group of amide is____________

Very Short Answer May-2018 • PSBTE DIPLOMA

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May 2017
The functional group of amide is____________
Ions are neutrals particles. (T/F)

Very Short Answer May-2018 • PSBTE DIPLOMA

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May 2017
State True or False.

i. Ions are neutral particles.

Dec 2015 Ions are neutral particles.

Ethylene is unsaturated in nature. (T/F)

Very Short Answer May-2018 • PSBTE DIPLOMA

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Dec 2015 Ethylene is unsaturated in nature.
Reduction involves the loss of electrons. (T/F)

Very Short Answer May-2018 • PSBTE DIPLOMA

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Dec 2011 Reduction involves loss of electrons.
SECTION-B

Q2. Attempt any ten questions.

i. What are the limitations of a chemical equation?

Short Answer 10x3=30 Marks May-2018 • PSBTE DIPLOMA

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May 2019
SECTION-B

Q2. Attempt any six questions. 6x5=30

i. What are the limitations of a chemical equation?

May 2017
SECTION: B

Q2 Attempt any ten questions.

a. Give three limitations of a chemical equation
Define the terms Electron, Proton and Neutron.

Short Answer May-2018 • PSBTE DIPLOMA

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May 2019
Define the terms Electron, Proton and Neutron.

May 2017
Define the terms Electron, Proton and Neutron.

Differentiate between an orbit and orbital.

Short Answer May-2018 • PSBTE DIPLOMA

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May 2019
Differentiate between an orbit and orbital.

May 2016
Diffrentiate between an orbit and an orbital?

Dec 2016
Differentiate between an orbit and an orbital.
Define chemical bond. What is the cause of chemical combination?

Short Answer May-2018 • PSBTE DIPLOMA

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May 2019
Define chemical bond. What is the cause of chemical combination?
What are the advantages of long form of periodic table?

Short Answer May-2018 • PSBTE DIPLOMA

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May 2019
What are the advantages of long form of periodic table?

May 2017
What are the advantages of long form of periodic table?

May 2016
Give advantages of long form of the periodic table?
Differentiate between temporary and permanent hardness of water.

Short Answer May-2018 • PSBTE DIPLOMA

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May 2019
Differentiate between temporary and permanent hardness of water.

May 2017
Differentiate between temporary and permanent hardness of water.

May 2015 Differentiate between temporary and permanent hardness of water.

Explain scale and sludge formation.

Short Answer May-2018 • PSBTE DIPLOMA

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May 2019
Explain scale and sludge formation.

May 2017
Explain scale and sludge formation.

May 2015 How will you explain the formation of scales and sludge?

Dec 2015 Explain scale and sludge formation.
State and explain Boyle’s law.

Short Answer May-2018 • PSBTE DIPLOMA

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May 2019 Define Boyle’s law.

Dec 2016
State and explain Boyle’s law.
What are electrolytes and non electrolytes?

Short Answer May-2018 • PSBTE DIPLOMA

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May 2019
What are electrolytes and non-electrolytes?

May 2017
What are strong and weak electrolytes?

Dec 2017
Explain electrolytes and non- electrolytes.

May 2016
Explain strong and weak electrolyte?

Dec 2015 What are electrolytes and non electrolytes?
How will you define indicator, titration and end point?

Short Answer May-2018 • PSBTE DIPLOMA

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May 2019
How will you define indicator, titration and end point?

Dec 2017
How will you define indicator, titration, and endpoint?

Explain Faraday’s second law of electrolysis.

Short Answer May-2018 • PSBTE DIPLOMA

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May 2019 Explain Faraday’s second law of electrolysis.

May 2017
Explain Faraday’s second law of electrolysis.

May 2015 State and explain Faraday’s 1st law of electrolysis.

Dec 2011 Define and explain Faradays laws of electrolysis.

Dec 2011 Define and explain the process of electrolysis.

Dec 2011 (a) Define and explain the process of electrolysis.
What are primary and secondary cell?

Short Answer May-2018 • PSBTE DIPLOMA

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May 2017
What are primary and secondary cell?

May 2016
Explain working of primary cell?
What is the functional group of

(a) Alcohols (b) Amide (c) Ketone?

Short Answer May-2018 • PSBTE DIPLOMA

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SECTION-C

Attempt any three questions.

Q3. a) Give main features of Bohr’s atomic model.

b) Balance the following equation by hit and trial method.

5 Fe + H2O Fe3O4 + H ------->

Long Answer 3x10=30 Marks May-2018 • PSBTE DIPLOMA

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May 2017
SECTION C

Attempt any three questions.

Q3. (a) Give the main features of Bohr’s atomic model.

(b) Balance the following equation by hit and trial method.

Fe + H2O Fe3O4 + H

a) State and explain Heisenberg’s uncertainty principle and Aufbau Principle.

b) Name the four quantum numbers and explain the significance of each quantum numbers.

Long Answer May-2018 • PSBTE DIPLOMA

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a) What are the various factors affecting the degree of ionization?

b) what is a buffer solution? Explain the types of buffer solution

Long Answer May-2018 • PSBTE DIPLOMA

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a) How will you remove hardness of water by permutit process?

b) Differentiate between reversible and irreversible reactions.

c) Explain the term catenation.

Long Answer May-2018 • PSBTE DIPLOMA

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a) Differentiate between alkene and alkyne.

b) What is the purpose of electroplating?

c) Explain the concept of redox reaction.

Long Answer May-2018 • PSBTE DIPLOMA

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FAQ

Frequently Asked Questions

Answers about this subject, solved papers, and preparation.

Updated regularly

01 Where can I find CHEM previous year question papers for PSBTE Diploma?

You can use this CHEM subject page to find subject-wise previous year question papers for the PSBTE Diploma in Engineering 1st-2nd semester.

02 Can I download CHEM diploma question paper PDF from this page?

This page is meant to help students locate CHEM question paper PDFs and old papers for study and revision.

03 Are solved CHEM question papers available here?

Students often search for solved papers, but this page is mainly for previous year question papers and exam preparation material.

04 How do CHEM old papers help in exam preparation?

Old CHEM papers help you understand the exam pattern, spot repeated questions, and revise important units before the exam.

05 Is BRpaper the official website of Punjab State Board of Technical Education?

No. BRpaper is not the official website of Punjab State Board of Technical Education; it is a study reference page for question papers.

Solved question paper for CHEM May-2018 (DIPLOMA 1st-2nd)

Chemistry May-2018

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