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Chemistry · 2017 · Shift 0

24 questions from this JEE Main paper

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2017 · Shift 0
Chemistry

Chemistry · 2017 · Shift 0

24 questions from this JEE Main paper

Aldehydes Ketones and Carboxylic Acids2 questions Biomolecules1 questions Practical Organic Chemistry1 questions Haloalkanes and Haloarenes4 questions Compounds Containing Nitrogen1 questions Basics of Organic Chemistry1 questions Coordination Compounds1 questions D and F Block Elements1 questions Some Basic Concepts of Chemistry2 questions Chemical Kinetics and Nuclear Chemistry1 questions Redox Reactions1 questions Ionic Equilibrium1 questions Electrochemistry1 questions Thermodynamics2 questions Solutions1 questions Structure of Atom2 questions Chemical Bonding and Molecular Structure1 questions

Q1.The major product obtained in the following reaction is : Includes diagram
Chemistry · Aldehydes Ketones and Carboxylic Acids · MCQ
Q2.Which of the following compounds will behave as a reducing sugar in an aqueous KOH solution?
Chemistry · Biomolecules · MCQ
Q3.The correct sequence of reagents for the following conversion will be : Includes diagram
Chemistry · Aldehydes Ketones and Carboxylic Acids · MCQ
Q4.Sodium salt of an organic acid ‘X’ produces effervescence with conc. $H_{2} S O_{4}$ . ‘X’ reacts with the acidified aqueous $C a C l_{2}$ solution to give a white precipitate which decolourises acidic solution of $K M n O_{4}$ . ‘X’ is :
Chemistry · Practical Organic Chemistry · MCQ
Q5.The major product obtained in the following reaction is : Includes diagram
Chemistry · Haloalkanes and Haloarenes · MCQ
Q6.Which of the following, upon treatment with tert-BuONa followed by addition of bromine water, fails to decolorize the colour of bromine?
Chemistry · Haloalkanes and Haloarenes · MCQ
Q7.3-Methyl-pent-2-ene on reaction with HBr in presence of peroxide forms an addition product. The number of possible stereoisomers for the product is :
Chemistry · Haloalkanes and Haloarenes · MCQ
Q8.The increasing order of the reactivity of the following halides for the SN1 reaction is : Includes diagram
Chemistry · Haloalkanes and Haloarenes · MCQ
Q9.Which of the following compounds will form significant amount of meta product during mono-nitration reaction?
Chemistry · Compounds Containing Nitrogen · MCQ
Q10.Which of the following molecules is least resonance stabilized?
Chemistry · Basics of Organic Chemistry · MCQ
Q11.On treatment of 100 mL of 0.1 M solution of $C o C l_{3}$ . 6 $H_{2} O$ with excess $A g N O_{3}$ ; 1.2 $\times$ 1022 ions are precipitated. The complex is :
Chemistry · Coordination Compounds · MCQ
Q12.In the following reactions, $Z n O$ is respectively acting as a/an : (a) $Z n O$ + $N a_{2} O$ $\to$ $N a_{2} Z n O_{2}$ (b) $Z n O$ + $C O_{2}$ $\to$ $Z n C O_{3}$
Chemistry · D and F Block Elements · MCQ
Q13.The most abundant elements by mass in the body of a healthy human adult are: Oxygen (61.4%); Carbon (22.9%), Hydrogen (10.0%); and Nitrogen (2.6%). The weight which a 75 kg person would gain if all 1H atoms are replaced by 2H atoms is:
Chemistry · Some Basic Concepts of Chemistry · MCQ
Q14.Two reactions $R_{1}$ and $R_{2}$ have identical pre-exponential factors. Activation energy of $R_{1}$ exceeds that of $R_{2}$ by 10 kJ mol–1. If $k_{1}$ and $k_{2}$ are rate constants for reactions $R_{1}$ and $R_{2}$ respectively at 300 K, then…
Chemistry · Chemical Kinetics and Nuclear Chemistry · MCQ
Q15.Which of the following reactions is an example of a redox reaction?
Chemistry · Redox Reactions · MCQ
Q16.pKa of a weak acid (HA) and pKb of a weak base (BOH) are 3.2 and 3.4, respectively. The pH of their salt (AB) solution is :
Chemistry · Ionic Equilibrium · MCQ
Q17.Given $E_{C l_{2} / C l^{-}}^{o}$ = 1.36 V, $E_{C r^{3 +} / C r}^{o}$ = - 0.74 V $E_{C r_{2} O_{7}^{2 -} / C r^{3 +}}^{o}$ = 1.33 V, $E_{M n O_{4}^{-} / M n^{2 +}}^{o}$ = 1.51 V Among the following, the strongest reducing agent is :
Chemistry · Electrochemistry · MCQ
Q18.Given, $C_{(g r a p hi t e)} + O_{2} \to C O_{2} (g)$ ; $Δ_{r} H^{o}$ = - 393.5 kJ mol-1 $H_{2} (g)$ + $\frac{1}{2} O_{2} (g) \to H_{2} O (l) Δ_{r} H^{o}$ = - 285.8 kJ mol-1 $C O_{2} (g)$ + $2 H_{2} O (l) \to C H_{4} (g)$ + $2 O_{2} (g) Δ_{r} H^{o}$ …
Chemistry · Thermodynamics · MCQ
Q19.The freezing point of benzene decreases by 0.450C when 0.2 g of acetic acid is added to 20g of benzene. If acetic acid associates to form a dimer in benzene, percentage association of acetic acid in benzene will be: (Kf for benzene = 5.12…
Chemistry · Solutions · MCQ
Q20.The group having isoelectronic species is:
Chemistry · Structure of Atom · MCQ
Q21. $Δ$ U is equal to :
Chemistry · Thermodynamics · MCQ
Q22.Which of the following species is not paramagnetic?
Chemistry · Chemical Bonding and Molecular Structure · MCQ
Q23.The radius of the second Bohr orbit for hydrogen atom is: (Planck’s Const. h = 6.6262 × 10-34 Js; mass of electron = 9.1091 × 10-31 kg; charge of electron (e) = 1.60210 × 10-19 C; permittivity of vacuum ( ${varepsilon _0}$ ) = 8.854185 ×…
Chemistry · Structure of Atom · MCQ
Q24.1 gram of a carbonate ( $M_{2} C O_{3}$ ) on treatment with excess $H C l$ produces 0.01186 mole of $C O_{2}$ . The molar mass of $M_{2} C O_{3}$ in g mol–1 is:
Chemistry · Some Basic Concepts of Chemistry · MCQ