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Chemistry · 2014 · Shift 0

24 questions from this JEE Main paper

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2014 · Shift 0
Chemistry

Chemistry · 2014 · Shift 0

24 questions from this JEE Main paper

Electrochemistry3 questions Solutions1 questions Basics of Organic Chemistry1 questions Redox Reactions1 questions Chemical Equilibrium1 questions Thermodynamics1 questions Some Basic Concepts of Chemistry1 questions Haloalkanes and Haloarenes2 questions Aldehydes Ketones and Carboxylic Acids2 questions Biomolecules1 questions Compounds Containing Nitrogen2 questions Alcohols Phenols and Ethers1 questions Coordination Compounds2 questions D and F Block Elements1 questions P Block Elements2 questions Chemical Kinetics and Nuclear Chemistry1 questions Structure of Atom1 questions

Q1.Resistance of 0.2 M solution of an electrolyte is 50 $Ω$ . The specific conductance of the solution is 1.4 S m-1. The resistance of 0.5 M solution of the same electrolyte is 280 $Ω$ . The molar conductivity of 0.5 M solution of the…
Chemistry · Electrochemistry · MCQ
Q2.Consider separate solutions of 0.500 M $C_{2} H_{5} O H$ (aq), 0.100 M $M g_{3} (P O_{4})_{2}$ (aq), 0.250 M $K B r$ (aq) and 0.125 M $N a_{3} P O_{4}$ (aq) at 25oC. Which statement is true about these solutions, assuming all salts to be strong electrolytes?
Chemistry · Solutions · MCQ
Q3.For the estimation of nitrogen, 1.4 g of organic compound was digested by Kjeldahl method and the evolved ammonia was absorbed in 60 mL of M/10 sulphuric acid. The unreacted acid required 20 ml of M/10 sodium hydroxide for complete…
Chemistry · Basics of Organic Chemistry · MCQ
Q4.In which of the following reactions $H_{2} O_{2}$ acts as a reducing agent? 1. $H_{2} O_{2}$ + 2 $H^{+}$ + 2e- $\to$ 2 $H_{2} O$ 2. $H_{2} O_{2}$ - 2e- $\to$ $O_{2}$ + 2 $H^{+}$ 3. $H_{2} O_{2}$ + 2e- $\to$ 2 $O H^{-}$ 4. $H_{2} O_{2}$ + 2 $O H^{-}$ - 2e- $\to$ $O_{2}$ + 2 $H_{2} O$
Chemistry · Redox Reactions · MCQ
Q5.For the reaction $S O_{2}$ (g) + $\frac{1}{2} O_{2} (g) ⇋$ $S O_{3}$ (g). if KP = KC(RT)x where the symbols have usual meaning then the value of x is: (assuming ideality)
Chemistry · Chemical Equilibrium · MCQ
Q6.For complete combustion of ethanol, $C_{2} H_{5} O H$ (l) + 3 $O_{2}$ (g) $\to$ 2 $C O_{2}$ (g) + 3 $H_{2} O$ (l) the amount of heat produced as measured in bomb calorimeter, is 1364.47 kJ mol–1 at 25oC. Assuming ideality the Enthalpy of combustion, $\Delta…
Chemistry · Thermodynamics · MCQ
Q7.Given below are the half-cell reactions: $M n^{2 +}$ + 2e- $\to$ $M n$ ; Eo = -1.18 V 2( $M n^{3 +}$ + e- $\to$ $M n^{2 +}$ ); Eo = +1.51 V The Eo for 3 $M n^{2 +}$ $\to$ $M n$ + 2 $M n^{3 +}$ will be :
Chemistry · Electrochemistry · MCQ
Q8.The ratio of masses of oxygen and nitrogen in a particular gaseous mixture is 1 : 4. The ratio of number of their molecule is:
Chemistry · Some Basic Concepts of Chemistry · MCQ
Q9.The major organic compound formed by the reaction of 1, 1, 1– trichloroethane with silver powder is:
Chemistry · Haloalkanes and Haloarenes · MCQ
Q10.Sodium phenoxide when heated with $C O_{2}$ under pressure at $12 5^{\circ} C$ yields a product which on acetylation products $C .$ The major product $C$ would be Includes diagram
Chemistry · Aldehydes Ketones and Carboxylic Acids · MCQ
Q11.Which one of the following bases is not present in DNA?
Chemistry · Biomolecules · MCQ
Q12.Considering the basic strength of amines in aqueous solution, which one has the smallest pKb value?
Chemistry · Compounds Containing Nitrogen · MCQ
Q13.On heating an aliphatic primary amine with chloroform and ethanolic potassium hydroxide, the organic compound formed is:
Chemistry · Compounds Containing Nitrogen · MCQ
Q14.The most suitable reagent for the conversion of R - $C H_{2}$ - OH $\to$ R - CHO is:
Chemistry · Alcohols Phenols and Ethers · MCQ
Q15.In the reaction, the product C is: Includes diagram
Chemistry · Aldehydes Ketones and Carboxylic Acids · MCQ
Q16.In $S N_{2}$ reactions, the correct order of reactivity for the following compounds: $C H_{3} C l$ , $C H_{3} C H 2 C l$ , $(C H_{3})_{2} C H C l$ and $(C H_{3})_{3} C C l$ is:
Chemistry · Haloalkanes and Haloarenes · MCQ
Q17.The equation which is balanced and represents the correct product(s) is :
Chemistry · Coordination Compounds · MCQ
Q18.The octahedral complex of a metal ion $M^{3 +}$ with four monodentate ligands $L_{1}$ , $L_{2}$ , $L_{3}$ and $L_{4}$ absorb wavelengths in the region of red, green, yellow and blue, respectively. The increasing order of ligand strength of the four…
Chemistry · Coordination Compounds · MCQ
Q19.Which series of reactions correctly represents chemical relations related to iron and its compound?
Chemistry · D and F Block Elements · MCQ
Q20.The correct statement for the molecule, $C s I_{3}$ is :
Chemistry · P Block Elements · MCQ
Q21.Which one of the following properties is not shown by NO?
Chemistry · P Block Elements · MCQ
Q22.For the non – stoichiometre reaction 2A + B $\to$ C + D, the following kinetic data were obtained in three separate experiments, all at 298 K. The rate law for the formation of C is: Includes table
Chemistry · Chemical Kinetics and Nuclear Chemistry · MCQ
Q23.The equivalent conductance of NaCl at concentration C and at infinite dilution are $λ_{C}$ and $λ_{\infty}$ , respectively. The correct relationship between $λ_{C}$ and $λ_{\infty}$ is given as: (where the…
Chemistry · Electrochemistry · MCQ
Q24.The correct set of four quantum numbers for the valence elections of rubidium atom (Z= 37) is:
Chemistry · Structure of Atom · MCQ