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Chemistry · 2020 · 3 Sep · Shift 1

18 questions from this JEE Main paper

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2020 · 3 Sep · Shift 1
Chemistry

Chemistry · 2020 · 3 Sep · Shift 1

18 questions from this JEE Main paper

Ionic Equilibrium1 questions Compounds Containing Nitrogen1 questions Basics of Organic Chemistry2 questions Coordination Compounds2 questions Chemical Kinetics and Nuclear Chemistry1 questions Periodic Table and Periodicity1 questions Electrochemistry2 questions Hydrocarbons2 questions Some Basic Concepts of Chemistry2 questions Haloalkanes and Haloarenes1 questions Solutions1 questions Aldehydes Ketones and Carboxylic Acids1 questions Chemical Bonding and Molecular Structure1 questions

Q1.An acidic buffer is obtained on mixing :
Chemistry · Ionic Equilibrium · MCQ
Q2.The Kjeldahl method of Nitrogen estimation fails for which of the following reaction products? Includes diagram
Chemistry · Compounds Containing Nitrogen · MCQ
Q3.Which one of the following compounds possesses the most acidic hydrogen?
Chemistry · Basics of Organic Chemistry · MCQ
Q4.The complex that can show optical activity is :
Chemistry · Coordination Compounds · MCQ
Q5.It is true that :
Chemistry · Chemical Kinetics and Nuclear Chemistry · MCQ
Q6.The atomic number of the element unnilennium is :
Chemistry · Periodic Table and Periodicity · MCQ
Q7.The photoelectric current from $N a$ (Work function, w0 = 2.3 eV) is stopped by the output voltage of the cell Pt(s) | $H_{2}$ (g, 1 Bar) | $H C l$ (aq., pH =1) | AgCl(s) | Ag(s). The pH of aq. $H C l$ required to stop the photoelectric current…
Chemistry · Electrochemistry · Numerical
Q8.The total number of monohalogenated organic products in the following (including stereoisomers) reaction is . Includes diagram
Chemistry · Hydrocarbons · Numerical
Q9.The volume strength of 8.9 M $H_{2} O_{2}$ solution calculated at 273 K and 1 atm is . (R = 0.0821 L atm K-1 mol-1) (rounded off ot the nearest integer)
Chemistry · Some Basic Concepts of Chemistry · Numerical
Q10.The mole fraction of glucose ( $C_{6} H_{12} O_{6}$ ) in an aqueous binary solution is 0.1. The mass percentage of water in it, to the nearest integer, is .
Chemistry · Some Basic Concepts of Chemistry · Numerical
Q11.Let C $N a C l$ and C $B a S O_{4}$ be the conductances (in S) measured for saturated aqueous solutions of $N a C l$ and $B a S O_{4}$ , respectively, at a temperature T. Which of the following is false?
Chemistry · Electrochemistry · MCQ
Q12.The mechanism of $S N_{1}$ reaction is given as : A student writes general characteristics based on the given mechanism as : (a) The reaction is favoured by weak nucleophiles. (b) $R^{+}$ would be easily formed if the substituents are bulky.… Includes diagram
Chemistry · Haloalkanes and Haloarenes · MCQ
Q13.Henry’s constant (in kbar) for four gases $α$ , $β$ , $γ$ and $δ$ in water at 298 K is given below : (density of water = 103 kg m-3 at 298 K) This table implies that : Includes table
Chemistry · Solutions · Multiple correct
Q14.The electronic spectrum of $[T i (H_{2} O)_{6}]^{3 +}$ shows a single broad peak with a maximum at 20,300 cm-1 . The crystal field stabilization energy (CFSE) of the complex ion, in kJ mol-1, is :
Chemistry · Coordination Compounds · MCQ
Q15.An organic compound [A], molecular formula $C_{10} H_{20} O_{2}$ was hydrolyzed with dilute sulphuric acid to give a carboxylic acid [B] and an alcohol [C]. Oxidation of [C] with $C r O_{3}$ - $H_{2} S O_{4}$ produced [B]. Which of the following…
Chemistry · Aldehydes Ketones and Carboxylic Acids · Multiple correct
Q16.Glycerol is separated in soap industries by :
Chemistry · Basics of Organic Chemistry · MCQ
Q17.Of the species, $N O$ , $N O^{+}$ , $N O_{2}^{+}$ and $N O^{-}$ , the one with minimum bond strength is :
Chemistry · Chemical Bonding and Molecular Structure · MCQ
Q18.Which of the following compounds produces an optically inactive compound on hydrogenation?
Chemistry · Hydrocarbons · MCQ