Solved question paper for CHEM Dec-2015 (DIPLOMA 1st-2nd)

Home
psbte
diploma
it
1st-2nd
chem
Dec-2015

Solved Question Paper

Chemistry Dec-2015

PSBTE • DIPLOMA • Information Technology • 1st-2nd • Dec-2015

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

Dimensional formula of Density is _____________.

Fill in the Blanks 1 Marks Dec-2015 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
Dec 2011 Dimensional formula of density is ___________.

Dec 2011 Dimensional formula of density is ________
A balanced chemical equation always obeys the law of _____________.

Fill in the Blanks 1 Marks Dec-2015 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
The shape of p-orbital is like ___________.

Fill in the Blanks 1 Marks Dec-2015 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
Dec 2016
The shape of p-orbital is dumb-bell.

Dec 2011 The shape of p-orbital is like ________
Proton is ___________ times heavier than electron.

Fill in the Blanks 1 Marks Dec-2015 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.

_________ hardness of water can be removed by boiling.

Fill in the Blanks 1 Marks Dec-2015 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
Dec 2016
_____________ hardness can be removed by boiling.

Dec 2011 ___________ hardness of water can be removed by mere boiling.
Blood is a _______ solution.

Fill in the Blanks 1 Marks Dec-2015 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
Dec 2016
Blood is a __________ solution.
Reducing agents __________ electrons.

Fill in the Blanks 1 Marks Dec-2015 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
May 2019
Reducing agents ______Electrons
The functional group of aldehyde is _____________.

Fill in the Blanks 1 Marks Dec-2015 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
Dec 2011 The functional group of aldehydes is ________

Ions are neutral particles.

True / False 1 Marks Dec-2015 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
May 2018
Ions are neutrals particles. (T/F)

May 2017
State True or False.

i. Ions are neutral particles.
No two electrons can have same set of four quantum numbers.

True / False 1 Marks Dec-2015 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
May 2017
No two electrons can have same set of four quantum numbers .
Horizontal rows are called columns.

True / False 1 Marks Dec-2015 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
Dec 2016
Horizontal rows are called __________.
Sodium hydroxide is a weak electrolyte.

True / False 1 Marks Dec-2015 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.

Ethylene is unsaturated in nature.

True / False 1 Marks Dec-2015 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
May 2018
Ethylene is unsaturated in nature. (T/F)
Permutit is an artificial zeolite.

True / False 1 Marks Dec-2015 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
Water is strongly dissociated into ions.

True / False 1 Marks Dec-2015 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
What information is conveyed by a chemical equation?

Short Answer 3 Marks Dec-2015 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
May 2019 What are the essentials of a chemical equation?

May 2016
What are the essentials of 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.

Calculate the actual mass of one molecule of water.

Short Answer 3 Marks Dec-2015 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
What are the successes of Bohr’s model of atom?

Short Answer 3 Marks Dec-2015 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
Dec 2016
What are the successes of Bohr’s model of atom?

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

Dec 2011 Give the main features of Bohr’s atomic model.
Explain covalent bond with examples.

Short Answer 3 Marks Dec-2015 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
May 2019
a) Define covalent bond. Explain it taking at least 2 examples?

May 2017
Define covalent bonding with examples.

Dec 2011 Define covalent bonding with at least two examples.
What are periods, groups and magic numbers?

Short Answer 3 Marks Dec-2015 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.

Explain scale and sludge formation.

Short Answer 3 Marks Dec-2015 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
May 2019
Explain scale and sludge formation.

May 2018
Explain scale and sludge formation.

May 2017
Explain scale and sludge formation.

May 2015 How will you explain the formation of scales and sludge?
Give characteristics of drinking water.

Short Answer 3 Marks Dec-2015 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
Dec 2016
Give the characteristics of drinking water.
Explain open, closed and isolated system.

Short Answer 3 Marks Dec-2015 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
Dec 2011 Explain open and closed systems.
Calculate the pH value of 0.001 M HCL.

Short Answer 3 Marks Dec-2015 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
May 2017
Calculate the pH value of 0.001 M HCL.

Dec 2011 Calculate the pH value of 0.01 M HCl solution.

Dec 2011 (b) Calculate the pH value of 0.01 M HCl soln.

Define an indicator, titration and end point.

Short Answer 3 Marks Dec-2015 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
Explain the working of dry cell.

Short Answer 3 Marks Dec-2015 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
Dec 2016
Explain the working of a dry cell.

May 2015 Explain working of Dry cell.
What are electrolytes and non electrolytes?

Short Answer 3 Marks Dec-2015 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
May 2019
What are electrolytes and non-electrolytes?

May 2018
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?
Give the common and IUPAC names of compounds (i) CH3CHO (ii) C2H5OH (iii) CH3COCH3.

Short Answer 3 Marks Dec-2015 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
Dec 2016
Write the common and IUPAC names off the following compounds.
\r\n\r\n
(i) CH3CHO (ii) C2H5OH (iii) CH3COCH3

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

Long Answer 5 Marks Dec-2015 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
Dec 2016
What are the factors which favour the formation of an 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?
Balance the following equation by hit and trial method: Fe + H2O → Fe3O4 + H

Long Answer 5 Marks Dec-2015 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
State and explain Pauli’s Exclusion Principle and Aufbau Principle.

Long Answer 5 Marks Dec-2015 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
Explain SP, SP2, SP3 hybridization.

Long Answer 5 Marks Dec-2015 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
May 2015 Define Hybridisation. Explain sp3 Hybridisation.

A sample of hard water is found to contain 285 mg of MgCL2/L. What will be its hardness in ppm? (Mg =24, CL=35.5, O=16, C=12)

Long Answer 5 Marks Dec-2015 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
May 2017
(a) A sample of hard water is found to contain 285mg of MgCL2/L. What will be its hardness in ppm? (Mg =24, CL= 35.5, O=16, C=12 Ca = 40 )
\r\n\r\n
(b) What are the various factors affecting the degree of ionisation?
What is a buffer solution? Explain the types of buffer solution.

Long Answer 5 Marks Dec-2015 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
How will you remove hardness of water by permutit process?

Long Answer 5 Marks Dec-2015 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
May 2019 What is permutit? How it can be used to remove hardness of water?
Differentiate between reversible and irreversible reactions.

Short Answer 2 Marks Dec-2015 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.

Explain the process of electroplating.

Short Answer 3 Marks Dec-2015 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
May 2019
Explain the process of electroplating?

May 2015 Explain electroplating by giving examples.

Dec 2011 Write in brief about electroplating.
Differentiate between alkene and alkyne.

Long Answer 5 Marks Dec-2015 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
May 2019
a) Differentiate between alkane and alkyne

Dec 2016
Differentiate between alkenes and alkynes.
Explain catenation as a property of carbon.

Short Answer 3 Marks Dec-2015 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
What is direct and indirect redox reaction?

Short Answer 2 Marks Dec-2015 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
Dec 2017
Give the difference between direct and in-direct redox reactions.

May 2015 Differentiate between Direct and Indirect redox reactions.

Explore all data

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-2015 (DIPLOMA 1st-2nd)

Chemistry Dec-2015

Solved Questions

Explore all data

PTU

PU Chandigarh

PSBTE

PSEB(School)

BFUHS

PU-PATIALA

GNDU

HPTSB

GTU

MDU

MRSPTU

CBSE(School)

BSEH

UBSE

PTU DISTANCE EDUCATION

Frequently Asked Questions