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NTA NEET 2020, JEE Main and JEE Advanced 2020 exam schedules announced

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5-May-2020
In continuation to our previous EduNews we let you know further that today our Human Resource Development (HRD) Minister announced the dates for JEE Main 2020 and NEET 2020 exams.
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Nationwide Engineering Joint Exam JEE Main 2020 will now be held from July 18 to July 23 while medical entrance test NEET 2020 will be conducted on July 26. JEE Advanced 2020 is expected to be held in August 2020, dates of which are not decided yet.


Another important thing he mentioned that JEE Main 2021 and NEET 2021 are likely to be held on the reduced syllabus. The minister urged students to self-study with the help of online study materials (websites) to prepare for Medical and Engineering Entrance Exams. With low-connectivity areas, the content will be telecast through SWAYAM Prabha TV, he informed.

Over 9 lakh students have registered to appear for JEE Main 2020 and over 15.93 lakh have applied for NEET 2020, as per the National Testing Agency (NTA) – the exam conducting body.

The dates for JEE Advanced will be decided soon, said HRD minister Ramesh Pokhriyal through a webinar on 5the May’20 Tuesday. Only the top 2.5 lakh of JEE Main are eligible to appear for JEE Advanced.

While JEE Main 2020 and NEET 2020 were to be held in April and the first week of May, respectively which were then postponed to be held by May-end. JEE Advanced 2020 was to be held in 3rd week of May. See latest update and new dates : 


Thermodynamics (Thermo-chemistry) - Online MCQ questions with their hints and solutions

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THERMODYNAMICS | THERMOCHEMISTRY
India Study Solution Test Series (Chemistry Practice Questions)
NEET, JEE IIT, AIIMS, NTSE | Engineering, BDS, MBBS Admission Test
Hi Guys,
Welcome back to your own site India Study Solution
As you are aware that in each set of India Study Solution test series we bring for you 10 new most important questions with their hints & solutions. This post is from our Chemistry Solutions chapter - Thermodynamics (Thermo-chemistry).
Each set is a combination of typically important some basic with some advanced level questions structured to enhance your confidence before appearing NEET, JEE (IIT), BHU, JIPMER, COMEDK and other MBBS Admission Tests, Engineering Entrance Exams, NTSE etc.
Many coaching institutes in India are charging thousands of rupees whereas you can get the same benefit on this site sitting at the comfort of your home totally  Free .
Friends, if you like the post please bookmark this site or if you have not subscribed us yet then please subscribe before you forget (it is free) so that you get information whenever we publish more questions on any subject (Physics, Chemistry, Biology, Mathematics). You are also welcome to follow us on Face Book, Twitter.
Please scroll down to find NEET and JEE syllabus of Thermodynamics (Thermochemistry).


Chemistry Practice Questions: Thermodynamics 

(Thermo-chemistry)
India Study Solution MCQ Test Series – Set 3 (Q. No 21-30)
Question 21: A gas expands isothermally against a constant external pressure of 1 atm from a volume of 10 dm3 to a volume of 20 dm3. It absorbs 800 J of thermal energy from its surroundings. The ∆U is
a. -312 J
b. +123 J
c. +312 J
d. -213 J

Question 22: The incorrect statement according to second law of thermodynamics is
a. Heat can flow from colder body to a hotter body of its own
b. All spontaneous processes are thermodynamically irreversible
c. Heat can be converted into work completely without causing some permanent change in the system (or) surroundings
d. Perpetual motion machine of second kind is not possible

Question 23: If one mole of ammonia and one mole of hydrogen chloride are mixed in a close container to form ammonium chloride gas, then
a. ∆H > ∆U
b. ∆H = ∆U
c. ∆H < ∆U
d. No relationship

Question 24: Molar heat capacity of water in equilibrium with the ice at constant pressure is:
a. Zero
b. Infinity (∞)
c. 40.45 KJK-1 mol-1
d. 5.48 JK-1 mol-1

Question 25: The work done in adiabatic process on ideal gas by a constant external pressure would be
a. Zero
b. ∆E
c. ∆H
d. ∆G

Question 26: For the equations
C (diamond) + 2H2 (g) ==> CH4 (g)   ∆H1­­;
C (g) + 4H (g) ==> CH4 (g)   ∆H2
Predict whether
a. ∆H1 = ∆H2
b. ∆H1> ∆H2
c. ∆H1< ∆H2
d. ∆H1 = ∆H2 + ∆vap H(3) + ∆diss H(H2)

Question 27: If a process is both endothermic and spontaneous then
a. ∆S > 0
b.∆S < 0
c.∆H < 0
d.∆G > 0

Question 28: An ideal gas occupying a volume of 2 dm3 and a pressure of 5 bar undergoes isothermal and irreversible expansion against external pressure of 1 bar. The final volume of the system and the work involved in the process is
a. 10 dm3, 1000J
b. 8 dm3, - 800 J
c. 10 dm3, - 800 J
d. 10 m3, - 1000 J

Question 29: Which of the following pairs of a chemical reaction is certain to result in a spontaneous reaction?
a. Exothermic and increasing disorder
b. Exothermic and decreasing disorder
c. Endothermic and increasing disorder
d. Endothermic and decreasing disorder

Question 30: Which of the following conditions regarding a chemical process ensures its spontaneity at all temperature?
a. ∆H > 0, ∆G < 0
b. ∆H < 0, ∆S > 0
c. ∆H < 0, ∆S < 0
d. ∆H > 0, ∆S < 0

Thermodynamics / Thermo-chemistry (NEET / JEE syllabus):
General characteristics, electronic configuration, occurrence, anomalous properties of the first element of each group, diagonal relationship, trends in the variation of properties (such as ionization enthalpy, atomic and ionic radii), trends in chemical reactivity with oxygen, water, hydrogen and halogens; uses of the compounds of Group I Elements (Alkali Metals) and Group II Elements (Alkaline Earth Metals). Preparation and Properties of Some important Compounds: sodium carbonate, sodium chloride, sodium hydroxide and sodium hydrogen carbonate, biological importance of sodium and potassium. Anomalous behaviour of beryllium. Industrial use lime and limestone, biological importance of Mg and Ca.
>>>>> <<<<<
India Study Solution MCQ Test Series - Hints and Solutions
tHERMODYNAMICS (THERMO-CHEMISTRY)
Set 3 (Q. No.21–30)
Answer 21: d. Answer 22: c. Answer 23: c. Answer 24: b. Answer 25: b. Answer 26: b. Answer 27: a. Answer 28: c. Answer 29: a. Answer 30: b.

 THERMODYNAMICS (Thermo-chemistry) - India Study Solution Chemistry Test Series Questions

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Organic Chemistry – Basic Principles, Classification, Nomenclature, Purification and Characterisation of Organic Compounds Test Series

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Organic Chemistry – Basic Principles, Classification, IUPAC Nomenclature, Purifications, TECHNIQUES and Characterisation of Organic Compounds
India Study Solution Chemistry Test Series (Confidence Booster)
NEET, JEE, IIT, AIIMS, NTSE | Engineering, BDS, MBBS Admission Test
Hi Guys,
Welcome back to your own site India Study Solution

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Starting from today we will be bringing you 20 sets of new test series of a new chapter from organic chemistry (Please scroll down to find NEET and JEE syllabus for this chapter).
As you are already aware each set of India Study Solution test series contain very carefully selected, 10 most important questions with their hints & solutions (given at the end).
This is a very important chapter and so, we would request you to please bookmark this site or if you have not subscribed us yet then please subscribe before you forget (it is free) so that you get information whenever we publish more questions on any chapter either from Physics, Chemistry, Biology or Mathematics.
Hope it would help you to learn and enhance your confidence to prepare for NEET, JEE (IIT), AIIMS, BHU, COMEDK, other MBBS Admission Tests, Engineering Entrance Exams, NEST. So, friends without wasting any time let us start -
Organic Chemistry  
(Basic Principles, Classification, IUPAC Nomenclature, Isomerism, Purification and Characterisation of Organic Compounds)
India Study Solution Test Series – Set 1 (Q. No 1-10)

Question 1: Suggest a method to purify benzene containing non-volatile impurities:
a. steam distillation
b. distillation under reduced pressure
c. simple distillation
d. sublimation

Question 2: The IUPAC name of the compound CH2 = CH – CH (CH3)2 is
a.1, 1-dimethylprop-2-ene
b. 3-Methylbut-1-ene
c. 2-Vinylpropane
d. 1-Isopropylethylene

Question 3: Resonance structures of a molecule do not have:
a. identical arrangements of atoms
b. nearly the same energy content
c. the same number of paired electrons
d. identical bonding

Question 4: Which of the following acids does not exhibit optical isomerism?
a. Lactic acid
b. Tartaric acid
c. Maleic acid
d. α-amino acids

Question 5: The correct IUPAC name of the given compound is:





a. 1-methyethylcyclohexane
b. 2-methylethylcyclohexane
c. 1-ethylmethylcyclohexane
d. 2-ethylmethylcyclohexane

Question 6: Petroleum refining involves:
a. vacuum distillation
b. fractional distillation
c. steam distillation
d. passing over activated charcoal

Question 7: In graphite, electrons are
a. localised on every third carbon
b. present in antibonding orbital
c. localised on each carbon
d. spread out between the structures

Question 8: Methanol and acetone can be separated by:
a. fractional distillation
b. distillation
c. steam distillation
d. vacuum distillation

Question 9: Of the following compounds, the oxime of which shows geometrical isomerism, is
a. Acetone
b. Diethylketone
c. Formaldehyde
d. Benzaldehyde

Question 10: Which of the following compounds shows evidence of the strongest hydrogen bonding?
a. . Propane - 1, 2, 3-triol
b. Propane - 1, 2- diol
c. Propan – 1 - ol
d. Propan – 2 - ol

Organic Compounds: Basic Principles, Classification & Nomenclature, Purification and Characterisation (Syllabus for NEET and JEE): Introduction to Organic Chemistry, Structural representation of organic compounds, Methods of purification qualitative and quantitative analysis of organic compounds, Classifications based on functional groups, Nomenclature (Trivial and IUPAC), Homologous series and Isomerism, Fundamental concepts in organic reaction mechanism, Tetravalency of carbon, Shapes of simple molecules, Electronic displacements in a covalent bond: Inductive effect, Electromeric effect (E-effect), Resonance and Hyperconjugation, Homolytic and heterolytic fission of a covalent bond: free radicals, carbocations, carbanions; electrophiles and nucleophiles, Types of organic reactions.
India Study Solution - Hints and Solutions Chemistry MCQ Test Series
Organic Chemistry  
(Basic Principles, Classification, IUPAC Nomenclature, Isomerism, Purification and Characterisation of Organic Compounds)
Hints and Solutions of Organic Chemistry Test Series (MCQ) – Set 1 (Q. No.1–10)
Answer 1: c. Answer 2: b. Answer 3: d. Answer 4: c.
Answer 5: a. (Hint: The correct IUPAC name of compound is 1-methylethylcycloheaxane and it is derivative of cyclohexane because the no. of C-atoms in the ring is more than the side chain).
Answer 6: b. (Hint: Crude petroleum is subjected for fractional distillation to get different products).
Answer 7: d. Answer 8: a. Answer 9: d. Answer 10: a.

Organic Chemistry: Basic Principles, Classification, IUPAC Nomenclature, Isomerism, Purification and Characterisation of Organic Compounds
 More questions to follow

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Alkali and Alkaline Earth Metals: Solved MCQ Test Series, Practice Questions for NEET, JEE, IIT, VITEEE, BHU, NTSE, MBBS, Engineering tests

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s-Block Elements (Alkali Metals, Alkaline Earth Metals)
India Study Solution Test Series (Chemistry - Confidence Booster)
NEET, JEE IIT, AIIMS, NTSE | Engineering, BDS, MBBS Admission Test
Hi Guys,
Welcome back to your own site India Study Solution
As you are aware that in each set of India Study Solution test series we bring for you another 10 most important questions with their hints & solutions. This post is from our Chemistry Solutions exclusively on Group-I and Group-II elements of Periodic Table.
In each set you will find a combination of typically important some basic with some advanced level questions very helpful for doing online preparation of NEET, JEE (IIT), BHU, JIPMER, COMEDK and all other MBBS Admission Tests, Engineering Entrance Exams, NTSE etc.
Many coaching institutes in India are charging thousands of rupees whereas you can get the same benefit sitting at home just free of cost. How’s that !!
Please scroll down to find NEET / JEE syllabus of s-Block elements.


Chemistry Practice Questions: s-Block Elements 
(Alkali and Alkaline Earth Metals)
(Group 1 Elements: Alkali Metals; Group 2 Elements: Alkaline Earth Metals)
India Study Solution MCQ Test Series – Set 2 (Q. No 11-20)
Question 11: Which of the following has largest size in aqueous solution?
a. Li+
b. Na+
c. K+
d. Cs+

Question 12: Alkali metals are characterised by:
a. good conductors of heat and electricity
b. high melting points
c. low oxidation potentials
d. high ionisation potentials

Question 13: Identify the correct statement
a. Plaster of Paris can be obtained by hydration of gypsum.
b. Plaster of Paris is obtained by partial oxidation of gypsum.
c. Gypsum contains a lower percentage of calcium than Plaster of Paris.
d. Gypsum is obtained by heating Plaster of Paris.

Question 14: NaNO3 is not used as gun powder because it is:
a. Hygroscopic
b. Very costly
c. Amorphous
d. Soluble in water

Question 15: Which of the following compounds has the lowest melting point?
a. CaF2
b. CaCl2
c. CaBr2
d. Cal2

Question 16: Which of the following has the highest solubility in water?
a. LiOH
b. KOH
c. CsOH
d. RbOH

Question 17: Which of the following represents calcium chlorite?
a. Ca(ClO3)2
b.Ca(ClO2)2
c.CaClO2
d. Ca(ClO4)2

Question 18: The reaction of sodium is highly exothermic with water. The rate of reaction is lowered by:
a. lowering the temperature
b. mixing with alcohol
c. mixing with acetic acid
d. making an amalgam

Question 19: When Na2O2 is added to water, the peroxide ion serves as:
a. an oxidising agent
b. an reducing agent
c. a bronsted acid
d. a bronsted base

Question 20: In which of the following the hydration energy is higher than the lattice energy?
a. MgSO4
b. RaSO4
c. SrSO4
d. BaSO4

s-Block Elements / Alkali and Alkaline Earth Metals (NEET / JEE syllabus):
General characteristics, electronic configuration, occurrence, anomalous properties of the first element of each group, diagonal relationship, trends in the variation of properties (such as ionization enthalpy, atomic and ionic radii), trends in chemical reactivity with oxygen, water, hydrogen and halogens; uses of the compounds of Group I Elements (Alkali Metals) and Group II Elements (Alkaline Earth Metals). Preparation and Properties of Some important Compounds: sodium carbonate, sodium chloride, sodium hydroxide and sodium hydrogen carbonate, biological importance of sodium and potassium. Anomalous behaviour of beryllium. Industrial use lime and limestone, biological importance of Mg and Ca.
>>>>> <<<<<
India Study Solution - Hints and Solutions Chemistry MCQ Test Series
Alkali and Alkaline Earth Metals (s-Block Elements)
(Group 1 Elements: Alkali Metals; Group 2 Elements: Alkaline Earth Metals)
Solutions of Chemistry Test Series (MCQ) – Set 2 (Q. No.11–20)
Answer 11: a. Answer 12: a. Answer 13: c.
Answer 14: a. (Hint: NaNO3 is not used as gun powder because it is hygroscopic in nature and becomes wet by absorbing water molecules from the atmosphere).
Answer 15: d.
Answer 16: c. (Hint: Down the group the change in lattice energy is more than that of hydration energy).
Answer 17: b. Answer 18: d.
Answer 19: d. (Hint: When Na2O2 is added to water, the peroxide ion serves as a Bronsted base. The reaction takes place as –
Na2O2 + 2H2O → 2NaOH + H2O2
O22- ion accepts protons in this reaction hence it behaves as a Bronsted Base.
Therefore, (D) option is correct).
Answer 20: a.

 s-Block Elements (Alkali and Alkaline Earth Metals)
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