JSTSE PREVIOUS YEAR QUESTIONS OF CHEMISTRY

JSTSE (Junior Science Talent Search Examination) is an exam conducted by Science Branch of DTE of Education, Delhi. JSTSE exam is scheduled every year in the month of January for the students of recognized schools of Delhi. In this post, you will get JSTSE Previous Year Questions of Chemistry.

JSTSE
Previous Year Question Papers
2007-08	2008-09	2009-10	2010-11	2011-12
2012-13	2013-14	2014-15	2015-16	2016-17
2018-19	Physics	Chemistry	Maths	Biology

JSTSE Previous Year Questions of Chemistry : 2011

Some of questions of JSTSE Chemistry Question Paper of : 2011 as below

Read More : 129 Maths Short Tricks

JSTSE Previous Year Question of Chemistry Ques No 1:

The equilibrium constant in a reversible chemical reaction at a given temperature depends upon

Options:

A. The initial concentration of the reactant

B. The concentration of one of the products at equilibrium

C. Does not depend on initial concentration of reactant

D. Is not characteristic of reaction

JSTSE Chemistry Question Paper Ques No 2:

A Thermos flask contain some ice cubes. This is an example of a

Options:

A. Closed system

B. Open system

C. Isolated system

D. Non Thermodynamic system

JSTSE Previous Year Question of Chemistry Ques No 3:

Heat of transition, is the heat evolved or absorbed when a substance is converted from

Options:

A. Solid to liquid

B. Solid to Vapour

C. Liquid to Vapour

D. One allotropic form to another allotropic form

JSTSE Chemistry Question Paper Ques No 4:

When concentrated H₂SO₄ is added to cold water. The solution become very hot because dilution of conc. H₂SO₄ is :

Options:

A. An exothermic reaction

B. An endothermic reaction

C. Photochemical reaction

D. Combustion reaction

JSTSE Previous Year Question of Chemistry Ques No 5:

Radiographer (a person working on X-ray machine) use to wear apron to protect himself from radiation

Options:

A. A mercury coated apron

B. Lead coated apron

C. Copper apron

D. Aluminium apron

For all questions of JSTSE Chemistry Question Paper of : 2011, Click Here 

JSTSE Previous Year Questions of Chemistry : 2012

Some of questions of JSTSE Chemistry Question Paper of : 2012 as below

JSTSE Previous Year Question of Chemistry Ques No 1:

Which hormone is used for ‘induced lactation’

Options:

A. Adrenaline

B. Oxytocin

C. Vasopressin

D. Auxin

JSTSE Chemistry Question Paper Ques No 2:

The heat energy in sun/stars is produced by:

Options:

A. Nuclear fission reaction

B. Combustion reaction

C. Nuclear fusion reaction

D. Thermos chemical reaction

JSTSE Previous Year Question of Chemistry Ques No 3:

What is wrong about fatty acids

Options:

A. a component of fat

B. found in fatty men only

C. always contain even number of carob-atom

D. used to make soaps

JSTSE Chemistry Question Paper Ques No 4:

Which of the following will not sublime

Options:

A. Camphor

B. Ammonium chloride

C. Calcium Chloride

D. Iodine

JSTSE Previous Year Question of Chemistry Ques No 5:

The temperature at which vapour pressure of a liquid becomes equal to the atmospheric
pressure is:

Options:

A. Boiling point

B. Melting point

C. Freezing point

D. Sublimation point

For all questions of JSTSE Chemistry Question Paper of : 2012, Click Here 

JSTSE Previous Year Questions of Chemistry : 2013

Some of questions of JSTSE Chemistry Question Paper of : 2013 as below

JSTSE Previous Year Questions of Chemistry Ques No 1:

KE (Kinetic Energy) of molecules in gases is directly proportional to:

Options:

A. Temperature

B. Pressure

C. Temperature & Pressure

D. Atmospheric Pressure

JSTSE Chemistry Question Paper Ques No 2:

Which of the following is not an endothermic process

Options:

A. Fusion

B. Transpiration

C. Respiration

D. Sublimation

JSTSE Previous Year Questions of Chemistry Ques No 3:

Bose-Einstein Condensate have

Options:

A. Ability to be used as model black-hole

B. Existence at very high temperature

C. isolated gaseous atoms

D. High Kinetic Energy

JSTSE Chemistry Question Paper Ques No 4:

When 500 mL ethylalcohol (pure) is mixed in 500 mL Water (pure), the volume of the
mixture will be:

Options:

A. 1.0 L

B. Less than 1.0 L

C. Immiscible

D. More than 1.0 L

JSTSE Previous Year Questions of Chemistry Ques No 5:

Which of the following cannot be separated by sublimation

Options:

A. Iodine and common salt

B. Iodine and Ammonium chloride

C. Camphor and common salt

D. Naphthalene and sand

For all questions of JSTSE Chemistry Question Paper of : 2013, Click Here

JSTSE Previous Year Questions of Chemistry : 2014

Some of questions of JSTSE Chemistry Question Paper of : 2014 as below

JSTSE Previous Year Questions of Chemistry Ques No 1:

In paints dispersed phase and dispersion medium are

Options:

A. solid and liquid

B. liquid and solid

C. liquid and liquid

D. gas and liquid

JSTSE Chemistry Question Paper Ques No 2:

Which statement is incorrect?

Options:

A. U-238 is used as fuel in nuclear reactor

B. Co-60 is used in the treatment of cancer

C. C-14 is used in carbon dating

D. 1-139 is used in treatment of goiter

JSTSE Previous Year Questions of Chemistry Ques No 3:

Density of Air will be highest at

Options:

A. 0°C and 1 atm

B. 73°C and 1 atm

C. -10°C and 2 atm

D. -73°C and 2 atm

JSTSE Chemistry Question Paper Ques No 4:

Which of the following mixture is heterogeneous mixture

Options:

A. Blood

B. Steel

C. Diesel

D. Aqueous solution of Ammonium chloride

JSTSE Previous Year Questions of Chemistry Ques No 5:

The correct order of increasing inter molecular forces of attraction in the following substances is

Options:

A. Water < Sugar < Carbon dioxide < Acetone

B. Carbon dioxide < Acetone < Water < Sugar

C. Sugar < Water < Acetone < Carbon dioxide

D. Carbon dioxide < Water < Acetone < Sugar

For all questions of JSTSE Chemistry Question Paper of : 2014, Click Here

JSTSE Previous Year Questions of Chemistry : 2015

Some of questions of JSTSE Chemistry Question Paper of : 2015 as below

JSTSE Previous Year Questions of Chemistry Ques No 1:

Separation method used for separating two miscible liquids:

Options:

A. Distillation

B. Evaporation

C. Separating funnel

D. Chromatography

JSTSE Chemistry Question Paper Ques No 2:

A compound of carbon, hydrogen and nitrogen contains these elements in the ratio of 9 : 1 : 3.5, if its molecular mass is 108 u what is its molecular formula?

Options:

A. C₂H₂N

B. C₃H₄N

C. C₂H₂N

D. C₆H₈N₂

JSTSE Previous Year Questions of Chemistry Ques No 3:

The process of respiration is:

Options:

A. Oxidation reaction which is endothermic

B. Reduction reaction which is endothermic

C. Combination reaction which is exothermic

D. Oxidation reaction which is exothermic

JSTSE Chemistry Question Paper Ques No 4:

Silver articles become black when exposed to air. It is due to the formation of:

Options:

A. Silver Oxide

B. Silver Nitrate

C. Silver Chloride

D. Silver Sulphide

JSTSE Previous Year Questions of Chemistry Ques No 5:

The label of a breakfast cereal showed that it contained 110 mg of sodium per 100 g of the cereal. The mass percent of sodium in the cereal is

Options:

A. 1.10%

B. 0.110%

C. 0.011%

D. 11.0%

For all questions of JSTSE Chemistry Question Paper of : 2015, Click Here

JSTSE
Previous Year Question Papers
2007-08	2008-09	2009-10	2010-11	2011-12
2012-13	2013-14	2014-15	2015-16	2016-17
2018-19	Physics	Chemistry	Maths	Biology

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