Solved question paper for CHEM May-2019 (DIPLOMA 1st-2nd)

Solved Question Paper

Chemistry May-2019

PSBTE • DIPLOMA • Mechanical Engineering (RAC) • 1st-2nd • May-2019

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.

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Solved Questions

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Dimensional formula of area is ______.

Fill in the Blanks 1 Marks May-2019 • PSBTE DIPLOMA

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

Fill in the Blanks 1 Marks May-2019 • PSBTE DIPLOMA

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May 2018
A chemical equation in which heat is evolved is called_____________.

May 2015 A chemical equation in which heat is absorbed is called ____________ reaction.
Elements of group 16 are also called ______.

Fill in the Blanks 1 Marks May-2019 • PSBTE DIPLOMA

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Dec 2011 The elements of group 16 in periodic table are known as
The full form of TDS is ______.

Fill in the Blanks 1 Marks May-2019 • PSBTE DIPLOMA

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One faraday of electrical charge is equal to ______ coulombs.

Fill in the Blanks 1 Marks May-2019 • PSBTE DIPLOMA

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pH of 10^-3 M HCl solution is equal to ______.

Fill in the Blanks 1 Marks May-2019 • PSBTE DIPLOMA

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For a chemical reaction to be feasible ΔG must be ______.

Fill in the Blanks 1 Marks May-2019 • PSBTE DIPLOMA

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As per electronic concept reduction is ______ of electrons.

Fill in the Blanks 1 Marks May-2019 • PSBTE DIPLOMA

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Dec 2016
Reduction involves ___________ of electrons.

May 2015 Reduction involves_________ of electron.

General formula of alkenes is ______.

Fill in the Blanks 1 Marks May-2019 • PSBTE DIPLOMA

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Functional group of carboxylic acids is ______.

Fill in the Blanks 1 Marks May-2019 • PSBTE DIPLOMA

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Soaps are sodium or potassium salts of higher fatty acids.

True / False 1 Marks May-2019 • PSBTE DIPLOMA

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Iron is a d-block element.

True / False 1 Marks May-2019 • PSBTE DIPLOMA

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Blood is a buffer solution.

True / False 1 Marks May-2019 • PSBTE DIPLOMA

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May 2016
Blood is a buffer solution.

Dec 2011 Blood is a buffer solution.
Cations carry positive charge.

True / False 1 Marks May-2019 • PSBTE DIPLOMA

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Atomic number of Hydrogen is three.

True / False 1 Marks May-2019 • PSBTE DIPLOMA

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What are the essentials of a chemical equation?

Short Answer 3 Marks May-2019 • PSBTE DIPLOMA

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May 2016
What are the essentials of chemical equation?

Dec 2015 What information is conveyed by a chemical equation?

Dec 2011 What are the essentials of a chemical equation?

Dec 2011 What are the implications of a chemical equation?

Dec 2011 Write the significance of a chemical equation with an example.

Balance the following chemical equation: Na + H2O → NaOH + H2

Short Answer 3 Marks May-2019 • PSBTE DIPLOMA

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Balance the following chemical equation: CH4 + O2 → CO2 + H2O

Short Answer 3 Marks May-2019 • PSBTE DIPLOMA

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Define Heisenberg’s uncertainty principle.

Short Answer 3 Marks May-2019 • PSBTE DIPLOMA

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Dec 2011 Explain in brief Heisenberg’s uncertainty principle.
Define isotopes, isobars and isotones.

Short Answer 3 Marks May-2019 • PSBTE DIPLOMA

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Differentiate between sigma bond and pi bond.

Short Answer 3 Marks May-2019 • PSBTE DIPLOMA

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May 2020 Differentiate between sigma (σ) and pi (π) bond.

Dec 2016
Differentiate between sigma (σ) and pi (π) bond.

May 2015 Differentiate between sigma and pi bond.
A sample of hard water is found to contain 204 mg of CaSO4 per litre of the solution. What will be the hardness in ppm? Given atomic mass of Ca = 40, S = 32, O = 16 and C = 12.

Short Answer 3 Marks May-2019 • PSBTE DIPLOMA

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Dec 2016
A sample of hard water is found to contain 204 mg of CaSO4/L. What will be its hardness in ppm?

Dec 2011 A sample of hard water is found to contain 272 mg of CaSO4 per litre. What will be its hardness in ppm? (Ca = 40, S = 32, O = 16, C = 12)

Dec 2011 (a) A sample of hard water is found to contain 272 mg of CaSO₄ per litre. What will be its hardness in ppm? (Ca = 40, S = 32, O = 16)
Explain desalination of sea water by reverse osmosis method.

Short Answer 3 Marks May-2019 • PSBTE DIPLOMA

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Define Boyle’s law.

Short Answer 3 Marks May-2019 • PSBTE DIPLOMA

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May 2018
State and explain Boyle’s law.

Dec 2016
State and explain Boyle’s law.

Define second law of thermodynamics.

Short Answer 3 Marks May-2019 • PSBTE DIPLOMA

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Dec 2017
State the first law of thermodynamics.
Explain Faraday’s second law of electrolysis.

Short Answer 3 Marks May-2019 • PSBTE DIPLOMA

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May 2018
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.
Give IUPAC names of the following: CH3Cl, CH3COOH, CH3NH2

Short Answer 3 Marks May-2019 • PSBTE DIPLOMA

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What is isomerism? Give its types.

Short Answer 3 Marks May-2019 • PSBTE DIPLOMA

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What are substitution reactions? Give one example.

Short Answer 3 Marks May-2019 • PSBTE DIPLOMA

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Give any two industrial applications of electrolysis.

Short Answer 3 Marks May-2019 • PSBTE DIPLOMA

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What is a solution? Explain Molarity, Molality, Normality and Mole fraction.

Long Answer 10 Marks May-2019 • PSBTE DIPLOMA

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May 2019
a) Explain molarity, normality and molality
Explain in detail: Ionic bond, Covalent bond, Coordinate bond and Metallic bond.

Long Answer 10 Marks May-2019 • PSBTE DIPLOMA

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What is permutit? How it can be used to remove hardness of water?

Long Answer May-2019 • PSBTE DIPLOMA

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Dec 2015 How will you remove hardness of water by permutit process?
Give the disadvantages of hard water.

Short Answer May-2019 • PSBTE DIPLOMA

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Define open system.

Very Short Answer May-2019 • PSBTE DIPLOMA

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Define isothermal process.

Very Short Answer May-2019 • PSBTE DIPLOMA

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May 2019 Define adiabatic process.

Define adiabatic process.

Very Short Answer May-2019 • PSBTE DIPLOMA

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May 2019 Define isothermal process.
Define intensive property.

Very Short Answer May-2019 • PSBTE DIPLOMA

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Define spontaneous process.

Very Short Answer May-2019 • PSBTE DIPLOMA

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Define electrochemical cell. Give the representation of an electrochemical cell.

Long Answer May-2019 • PSBTE DIPLOMA

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Define electrochemical series. Give any two applications of electrochemical series.

Short Answer May-2019 • PSBTE DIPLOMA

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FAQ

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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-2019 (DIPLOMA 1st-2nd)

Chemistry May-2019

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