Solved question paper for CHEM Dec-2016 (DIPLOMA 1st-2nd)

Solved Question Paper

Chemistry Dec-2016

PSBTE • DIPLOMA • Mechanical Engineering (RAC) • 1st-2nd • Dec-2016

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 (A) Fill in the blanks

1. The dimensional formula of surface tension is ________.

Very Short Answer 10 Marks Dec-2016 • PSBTE DIPLOMA

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Positively charged ions are called ____________.

Very Short Answer Dec-2016 • PSBTE DIPLOMA

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Dec 2017
Negatively charged ions are called __________

May 2016
Positively charged ions are called………………….

May 2016
Negatively charged ion are called …………………

Dec 2011 Negatively charged ions are called ______
The volume occupied by 0.5 mole of Helium at S.T.P will be__________.

Very Short Answer Dec-2016 • PSBTE DIPLOMA

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Electrons, protons and neutrons are called ___________ particles.

Very Short Answer Dec-2016 • PSBTE DIPLOMA

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Horizontal rows are called __________.

Very Short Answer Dec-2016 • PSBTE DIPLOMA

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Dec 2015 Horizontal rows are called columns.
A covalent bond is formed by ______________ of half-filled atomic orbitals.

Very Short Answer Dec-2016 • PSBTE DIPLOMA

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_____________ hardness can be removed by boiling.

Very Short Answer Dec-2016 • PSBTE DIPLOMA

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Dec 2015 _________ hardness of water can be removed by boiling.

Dec 2011 ___________ hardness of water can be removed by mere boiling.
Reduction involves ___________ of electrons.

Very Short Answer Dec-2016 • PSBTE DIPLOMA

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May 2019 As per electronic concept reduction is ______ of electrons.

May 2015 Reduction involves_________ of electron.

CnH2n is the general formula of ____________.

Very Short Answer Dec-2016 • PSBTE DIPLOMA

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Blood is a __________ solution.

Very Short Answer Dec-2016 • PSBTE DIPLOMA

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Dec 2015 Blood is a _______ solution.
State True or False

1. Hard water does not give lather with soap.

Very Short Answer 5 Marks Dec-2016 • PSBTE DIPLOMA

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May 2018
State True or False.
\r\n\r\n
xi. Hard water does not give lather with soap.
The solution having pH value more than 7 is acidic in nature.

Very Short Answer Dec-2016 • PSBTE DIPLOMA

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Lead acid cell is a primary cell.

Very Short Answer Dec-2016 • PSBTE DIPLOMA

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The property of carbon to form long chain molecules is called catenation.

Very Short Answer Dec-2016 • PSBTE DIPLOMA

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The shape of p-orbital is dumb-bell.

Very Short Answer Dec-2016 • PSBTE DIPLOMA

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Dec 2015 The shape of p-orbital is like ___________.

Dec 2011 The shape of p-orbital is like ________
SECTION - B

Q2. Attempt any 10 questions

1. Define chemical equation. What are the essentials of a chemical equation?

Short Answer 10x3=30 Marks Dec-2016 • PSBTE DIPLOMA

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If the quantum number ‘n’ has a value of 4, what are the permitted values of quantum number l and m?

Short Answer Dec-2016 • PSBTE DIPLOMA

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Differentiate between an orbit and an orbital.

Short Answer Dec-2016 • PSBTE DIPLOMA

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May 2019
Differentiate between an orbit and orbital.

May 2018
Differentiate between an orbit and orbital.

May 2016
Diffrentiate between an orbit and an orbital?
Calculate the number of moles in 200g of CaCO3.

Short Answer Dec-2016 • PSBTE DIPLOMA

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State and explain Aufbau’s principle.

Short Answer Dec-2016 • PSBTE DIPLOMA

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Give the characteristics of drinking water.

Short Answer Dec-2016 • PSBTE DIPLOMA

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Dec 2015 Give characteristics of drinking water.
Differentiate between sigma (σ) and pi (π) bond.

Short Answer Dec-2016 • PSBTE DIPLOMA

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

May 2019 Differentiate between sigma bond and pi bond.

May 2015 Differentiate between sigma and pi bond.
The nucleus of an atom contains 12 neutrons and 11 protons. Find its atomic number and mass number.

Short Answer Dec-2016 • PSBTE DIPLOMA

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State and explain Boyle’s law.

Short Answer Dec-2016 • PSBTE DIPLOMA

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May 2019 Define Boyle’s law.

May 2018
State and explain Boyle’s law.

State Le-Chatelier’s principle.

Short Answer Dec-2016 • PSBTE DIPLOMA

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May 2015 State Le- Chatelier’s principle.
Explain open, closed and adiabatic systems.

Short Answer Dec-2016 • PSBTE DIPLOMA

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Dec 2017
Explain isothermal and adiabatic process.
Calculate the weight of Cu deposited, when a current of 0.5 ampere is passed for 20 minutes through a solution of CuSO4.( ECE of Cu= 0.00032)

Short Answer Dec-2016 • PSBTE DIPLOMA

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Give the functional groups of following compounds

(i) Aldehydes (ii) Amines (iii) Alcohols

Short Answer Dec-2016 • PSBTE DIPLOMA

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

Short Answer Dec-2016 • PSBTE DIPLOMA

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May 2019 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.

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)
SECTION- C

Attempt any 3 questions

Q3 (a) Name and explain the four quantum numbers.

Long Answer 3x10=30 Marks Dec-2016 • PSBTE DIPLOMA

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May 2019
SECTION-C

Attempt any three questions. 3x10=30
Q3. a) Name and explain the quantum numbers.
What are the successes of Bohr’s model of atom?

Long Answer Dec-2016 • PSBTE DIPLOMA

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May 2015 Give the main features of Bohr’s model of atom.

Dec 2015 What are the successes of Bohr’s model of atom?

Dec 2011 Give the main features of Bohr’s atomic model.
Q4 (a) Define hybridization. Explain sp, sp2 and sp3 .

Long Answer Dec-2016 • PSBTE DIPLOMA

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What are the factors which favour the formation of an ionic bond?

Long Answer Dec-2016 • PSBTE DIPLOMA

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Dec 2015 Define ionic bond. What are the factors favouring the formation of ionic bond?

Dec 2011 What are the various factors favoring formation of ionic bond?

Dec 2011 (a) What are the various factors favoring formation of ionic bond?
Q5 (a) Explain ion-exchange process for softening of hard water.

Long Answer Dec-2016 • PSBTE DIPLOMA

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Explain Priming and Foaming. Write the various methods to prevent it.

Long Answer Dec-2016 • PSBTE DIPLOMA

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Q6 (a) State and explain Faraday’s first law of electrolysis.

Long Answer Dec-2016 • PSBTE DIPLOMA

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Explain the working of a dry cell.

Long Answer Dec-2016 • PSBTE DIPLOMA

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May 2015 Explain working of Dry cell.

Dec 2015 Explain the working of dry cell.
What is salt bridge? Give its two functions.

Long Answer Dec-2016 • PSBTE DIPLOMA

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Q7 (a) Give characteristics of homologous series.

Long Answer Dec-2016 • PSBTE DIPLOMA

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Differentiate between alkenes and alkynes.

Long Answer Dec-2016 • PSBTE DIPLOMA

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May 2019
a) Differentiate between alkane and alkyne

Dec 2015 Differentiate between alkene and alkyne.

Write the common and IUPAC names off the following compounds.

(i) CH3CHO (ii) C2H5OH (iii) CH3COCH3

Long Answer Dec-2016 • PSBTE DIPLOMA

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Dec 2015 Give the common and IUPAC names of compounds (i) CH3CHO (ii) C2H5OH (iii) CH3COCH3.
Explain the term catenation.

Long Answer Dec-2016 • 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 Dec-2016 (DIPLOMA 1st-2nd)

Chemistry Dec-2016

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