Thermodynamics - JEE Main Previous Year Questions with Solutions
JEE Main Previous Year Papers Questions of Chemistry With Solutions are available at eSaral. Simulator Previous Years AIEEE/JEE Mains Questions [esquestion] In a fuel cell methanol is used as fuel and oxygen gas is used as an oxidizer. The reaction is $\mathrm{CH}_{3} \mathrm{OH}(\ell)+\frac{3}{2} \mathrm{O}_{2}(\mathrm{g}) \longrightarrow \mathrm{CO}_{2}(\mathrm{g})+2 \mathrm{H}_{2} \mathrm{O}(\ell)$ At 298 K standard Gibb's energies of formation for $\mathrm{CH}_{3} \mathrm{OH}(\ell), \mathrm{...
Read More →Themochemistry - JEE Main Previous Year Questions with Solutions
JEE Main Previous Year Papers Questions of Chemistry With Solutions are available at eSaral. Simulator Previous Years AIEEE/JEE Mains Questions [esquestion] In a fuel cell methanol is used as fuel and oxygen gas is used as an oxidizer. The reaction is $\mathrm{CH}_{3} \mathrm{OH}(\ell)+\frac{3}{2} \mathrm{O}_{2}(\mathrm{g}) \longrightarrow \mathrm{CO}_{2}(\mathrm{g})+2 \mathrm{H}_{2} \mathrm{O}(\ell)$ At 298 K standard Gibb's energies of formation for $\mathrm{CH}_{3} \mathrm{OH}(\ell), \mathrm{...
Read More →States of Matter - JEE Main Previous Year Questions with Solutions
JEE Main Previous Year Papers Questions of Chemistry With Solutions are available at eSaral. Simulator Previous Years AIEEE/JEE Mains Questions [esquestion] The molecular velocity of any gas is :- (1) inversely proportional to the square root of temperature (2) inversely proportional to absolute temperature (3) directly proportional to square of temperature (4) directly proportional to square root of temperature #tag# [AIEEE-2011] #sol# (4) [/esquestion] [esquestion] , v and u represent most pr...
Read More →Redox Reaction - JEE Main Previous Year Questions with Solutions
JEE Main Previous Year Papers Questions of Chemistry With Solutions are available at eSaral. Simulator Previous Years AIEEE/JEE Mains Questions [esquestion] Consider the following reaction: $\mathrm{xMnO}_{4}^{-}+\mathrm{yC}_{2} \mathrm{O}_{4}^{2-}+\mathrm{ZH}^{+} \rightarrow$ $\mathrm{xMn}^{2+}+2 \mathrm{yCO}_{2}+\frac{\mathrm{Z}}{2} \mathrm{H}_{2} \mathrm{O}$ The values of x, y and z in the reaction are respectively :- (1) 5,2 and 16 (2) 2,5 and 8 (3) 2, 5 and 16 (4) 5,2 and 8 #tag# [JEE(Main)...
Read More →Mole Concept - JEE Main Previous Year Questions with Solutions
eSaral JEE Main Chemistry Mole Concept Previous Year Questions with Solutions JEE Main Previous Year Papers Questions of Chemistry With Solutions are available at eSaral. Simulator Previous Years AIEEE/JEE Mains Questions [jee-post-banner] 🚀 Checkout eSaral Courses [esquestion] A 5.2 molal aqueous solution of methyl alcohol, $\mathrm{CH}_{3} \mathrm{OH}$, is supplied. What is the mole fraction of methyl alcohol in the solution ? (1) 0.086 (2) 0.050 (3) 0.100 (4) 0.190 #tag# [AIEEE-2011] #sol# (1...
Read More →Ionic Equilibrium - JEE Main Previous Year Questions with Solutions
JEE Main Previous Year Papers Questions of Chemistry With Solutions are available at eSaral. Simulator Previous Years AIEEE/JEE Mains Questions [esquestion] Solid Ba$\left(\mathrm{NO}_{3}\right)_{2}$ is gradully dissolved in a 1.0 × $10^{-4} \mathrm{M} \mathrm{Na}_{2} \mathrm{CO}_{3}$ solution.At what concentration of Ba2+ will a precipitate begin to form? $\left(\mathrm{K}_{\mathrm{SP}} \text { for } \mathrm{Ba} \mathrm{CO}_{3}=5.1 \times 10^{-9}\right)$ (A) $8.1 \times 10^{-8} \mathrm{M}$ (B) ...
Read More →Chemical Equilibrium - JEE Mains Previous Year Questions
eSaral JEE JEE Main Chemical Equilibrium 🚀 Checkout eSaral Courses JEE Main Previous Year Papers Questions of Chemistry With Solutions are available at eSaral. Simulator Previous Years AIEEE/JEE Mains Questions [esquestion] A vessel at 1000 K contains $\mathrm{CO}_{2}$ with a pressure of 0.5 atm. Some of the $\mathrm{CO}_{2}$ is converted into CO on the addition of graphite. If the total pressure at equilibrium is 0.8 atm, the value of K is :- (1) 0.3 atm (2) 0.18 atm (3) 1.8 atm (4) 3 atm #tag#...
Read More →Atomic Structure - JEE Main Previous Year Questions with Solutions
Home JEE Main Previous Year Questions Atomic Structure JEE Main PYQs with Solutions 🚀 Checkout eSaral Courses JEE Main Previous Year Papers Questions of Chemistry With Solutions are available at eSaral. Simulator Previous Years AIEEE/JEE Mains Questions [esquestion] In an atom, an electron is moving with a speed of 600 m/s with an accuracy of 0.005%. Certainity with which the position of the electron can be located is ($\mathrm{Ch}=6.6 \times 10^{-34} \mathrm{kg} \mathrm{m}^{2} \mathrm{s}^{-1}$,...
Read More →Structural Isomerism - JEE Main Previous Year Questions with Solutions
eSaral JEE Main Chemistry Structural Isomerism Previous Year Questions with Solutions 🚀 Checkout eSaral Courses JEE Main Previous Year Papers Questions of Chemistry With Solutions are available at eSaral. Simulator Previous Years AIEEE/JEE Mains Questions [esquestion] The alkene that exhibits geometrical isomerism is :- (1) 2butene (2) 2methyl2butene (3) Propene (4) 2methyl propene #tag# [AIEEE-2009] #sol# (1) [/esquestion] [esquestion] The number of stereoisomers possible for a compound of the ...
Read More →Oxidation & Reduction - JEE Main Previous Year Questions with Solutions
JEE Main Previous Year Papers Questions of Chemistry With Solutions are available at eSaral. Simulator Previous Years AIEEE/JEE Main Questions [esquestion] Which of the following will change the colour of acidic dichromate solution. #tag# [JEE-MAINS 2013] #sol# (A) [/esquestion] [esquestion] #tag# [JEE-MAINS 2013] #sol# (C) [/esquestion] [esquestion] #tag# [JEE-MAINS 2013] #sol# (A) [/esquestion] [esquestion] The most suitable reagent for the conversion of $\mathrm{R}-\mathrm{CH}_{2}-\mathrm{OH}...
Read More →IUPAC Nomenclature - JEE Main Previous Year Questions with Solutions
eSaral JEE JEE Main IUPAC Nomenclature - JEE Main Previous Year Questions with Solutions 🚀 Checkout eSaral Courses JEE Main Previous Year Papers Questions of Chemistry With Solutions are available at eSaral. Simulator Previous Years AIEEE/JEE Mains Questions [esquestion] The IUPAC name of neopentane is :- (1) 2methylpropane (2) 2, 2dimethylbutane (3) 2methylbutane (4) 2, 2dimethylpropane #tag# [AIEEE -2009] #sol# (4) [/esquestion] [esquestion] The IUPAC name of the compound is :- (1) 1, 2-Epoxy ...
Read More →Hydrocarbons - JEE Main Previous Year Questions with Solutions
eSaral JEE JEE Main Hydrocarbons 🚀 Checkout eSaral Courses JEE Main Previous Year Papers Questions of Chemistry With Solutions are available at eSaral. Simulator Previous Years AIEEE/JEE Mains Questions [esquestion] The main product of the following reaction is #tag# [AIEEE-2010] #sol# (2) [/esquestion] [esquestion] One mole of a symmetrical alkene on ozonolysis gives two moles of an aldehyde having a molecular mass of 44 u. The alkene is :- (1) Ethene (2) Propene (3) 1-Butene (4) 2-Butene #tag#...
Read More →Halogen Derivative - JEE Main Previous Year Questions with Solutions
JEE Main Previous Year Papers Questions of Chemistry With Solutions are available at eSaral Simulator Previous Years AIEEE/JEE Mains Questions [esquestion] Which of the following on heating with aqueous KOH, produces acetaldehyde ? (1) $\mathrm{CH}_{2} \mathrm{ClCH}_{2} \mathrm{Cl}$ (2) $\mathrm{CH}_{3} \mathrm{CHCl}_{2}$ (3) $\mathrm{CH}_{3} \mathrm{COCl}$ (4) $\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{Cl}$ #tag# [AIEEE-2009] #sol# (1) [/esquestion] [esquestion] Consider the following bromides :-...
Read More →General Organic Chemistry - JEE Main Previous Year Questions with Solutions
eSaral JEE JEE Main General Organic Chemistry 🚀 Checkout eSaral Courses Chapter Weightage Most-Asked GOC Concepts General Organic Chemistry is one of the highest-return chapters in JEE Main Chemistry. The questions are consistently conceptual no long calculations which means a student who has internalised the logic of electronic effects can solve GOC questions in 6090 seconds reliably. Year-Wise Question Frequency (JEE Main / AIEEE) Year Questions from GOC Concepts Tested AIEEE 2009 1 Carbanion ...
Read More →Environmental Chemistry - JEE Main Previous Year Questions with Solutions
JEE Main Previous Year Papers Questions of Chemistry With Solutions are available at eSaral. Simulator Previous Years AIEEE/JEE Mains Questions [esquestion] 29.5 mg of an organic compound containing nitrogen was digested according to Kjeldahl's method and the evolved ammonia was absorbed in 20 mL of 0.1 M HCl solution. The excess of the acid required 15 mL of 0.1 M NaOH solution for complete neutralization. The percentage of nitrogen in the compound is :- (1) 29.5 (2) 59.0 (3) 47.4 (4) 23.7 #tag...
Read More →Aromatic Compound - JEE Mains Previous Year Questions
eSaral JEE JEE Main Aromatic Compound - JEE Mains Previous Year Questions 🚀 Checkout eSaral Courses JEE Main Previous Year Papers Questions of Chemistry With Solutions are available at eSaral. Simulator Previous Years AIEEE/JEE Mains Questions [esquestion] In the chemical reactions, the compounds 'A' and 'B' respectively are :- (1) Nitrobenzene and chlorobenzene (2) Nitrobenzene and fluorobenzene (3) Phenol and benzene (4) Benzene diazonium chloride and fluorobenzene #tag# [AIEEE-2010] #sol# (4)...
Read More →p-block - JEE Main Previous Year Questions with Solutions
JEE Main Previous Year Papers Questions of Chemistry With Solutions are available at eSaral. Simulator Previous Years AIEEE/JEE Mains Questions [esquestion] Which one of the following reactions of Xenon compounds is not feasible ? (1) $2 \mathrm{XeF}_{2}+2 \mathrm{H}_{2} \mathrm{O} \rightarrow 2 \mathrm{Xe}+4 \mathrm{HF}+\mathrm{O}_{2}$ (2) $\mathrm{XeF}_{6}+\mathrm{RbF} \rightarrow \mathrm{Rb}\left[\mathrm{XeF}_{7}\right]$ (3) $\mathrm{XeO}_{3}+6 \mathrm{HF} \rightarrow \mathrm{XeF}_{6}+3 \math...
Read More →Hydrogen - JEE Main Previous Year Questions with Solutions
JEE Main Previous Year Papers Questions of Chemistry With Solutions are available at eSaral. Simulator Previous Years AIEEE/JEE Mains Questions [esquestion] Very pure hydrogen (99.9%) can be made by which of the following processes? (1) Reaction of salt like hydrides with water (2) Reaction of methane with steam (3) Mixing natural hydrocarbons of high molecular weight (4) Electrolysis of water #tag# [AIEEE 2012] #sol# (4) Very pure hydrogen (99.9%) can be made by electrolysis of water. [/esquest...
Read More →Periodic Table - JEE Main Previous Year Questions with Solutions
JEE Main Previous Year Papers Questions of Chemistry With Solutions are available at eSaral. Simulator Previous Years AIEEE/JEE Mains Questions [esquestion] The set representing the correct order of ionic radius is ? (1) $\mathrm{Li}^{+}\mathrm{Na}^{+}\mathrm{Mg}^{2+}\mathrm{Be}^{2+}$ (2) $\mathrm{Mg}^{2+}\mathrm{Be}^{2+}\mathrm{Li}^{+}\mathrm{Na}^{+}$ (3) $\mathrm{Li}^{+}\mathrm{Be}^{2+}\mathrm{Na}^{+}\mathrm{Mg}^{2+}$ (4) $\mathrm{Na}^{+}\mathrm{Li}^{+}\mathrm{Mg}^{2+}\mathrm{Be}^{2+}$ #tag# [...
Read More →s-block - JEE Main Previous Year Questions with Solutions
JEE Main Previous Year Papers Questions of Chemistry With Solutions are available at eSaral. Simulator Previous Years AIEEE/JEE Mains Questions [esquestion] The products obtained on heating $\mathrm{LiNO}_{3}$ will be :- (1) $\mathrm{LiNO}_{2}+\mathrm{O}_{2}$ (2) $\mathrm{Li}_{2} \mathrm{O}+\mathrm{NO}_{2}+\mathrm{O}_{2}$ (3) $\mathrm{Li}_{3} \mathrm{N}+\mathrm{O}_{2}$ (4) $\mathrm{Li}_{2} \mathrm{O}+\mathrm{NO}+\mathrm{O}_{2}$ #tag# [AIEEE-2011] #sol# (2) Fact based. [/esquestion] [esquestion] ...
Read More →Chemical Bonding - JEE Main Previous Year Questions with Solutions
Home JEE Main Previous Year Questions Chemical Bonding JEE Main Questions 🚀 Checkout eSaral Courses JEE Main Previous Year Papers Questions of Chemistry With Solutions are available at eSaral. Simulator Previous Years AIEEE/JEE Mains Questions [esquestion] The bond dissociation energy of BF in $\mathrm{BF}_{3}$ is 646 kJ $\mathrm{mol}^{-1}$whereas that of CF in $\mathrm{CF}_{4}$ is 515 kJ mol1. The correct reason for higher BF bond dissociation energy as compared to that of CF is :- (1) Signific...
Read More →Continuity and Differentiation Notes for Class 12 & IIT JEE
eSaral Class 12 Continuity and Differentiation Notes for Class 12 IIT JEE 🚀 Checkout eSaral Courses Why This Chapter Matters for Class 12 JEE Continuity and Differentiability is one of the highest-weightage topics in both CBSE Class 12 Boards and JEE Main. According to NTA's official JEE Main paper analysis, questions from this chapter appear in every single session typically 23 questions worth 812 marks. In CBSE Boards, the chapter contributes directly to Unit III (Calculus), which alone accoun...
Read More →Measures of Central Tendency & Dispersion Notes for Class 12 & IIT JEE
eSaral provides you complete study material to prepare for IIT JEE, NEET and Boards Examination. Here are the detailed notes on Measures of Central Tendency & Dispersion with Important Questions that will also help in IIT JEE and boards preparation....
Read More →Statics & Dynamics Notes for Notes for Class 11, IIT JEE & NEET
eSaral provides you complete study material to prepare for IIT JEE, NEET and Boards Examination. Here are the detailed Statics and Dynamics Class 11 Notes with Important Questions that will also help in IIT JEE and boards preparation....
Read More →Indefinite Integral Notes for Class 12 & IIT JEE
eSaral Class 12 Maths Notes Indefinite Integral Notes for IIT JEE eSaral provides you with complete study material to prepare for IIT JEE, NEET, and Board Examinations. Here are the detailed notes on Indefinite Integral Class 12 with Important Questions that will also help in IIT JEE and boards preparation. India's Best Exam Preparation for Class 12th - Download Now 🚀 Checkout eSaral Courses India's Best Exam Preparation for Class 12th - Download Now India's Best Exam Preparation for Class 12th ...
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