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Chemistry · 2021 · 17 Mar · Shift 2

20 questions from this JEE Main paper

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2021 · 17 Mar · Shift 2
Chemistry

Chemistry · 2021 · 17 Mar · Shift 2

20 questions from this JEE Main paper

Biomolecules2 questions Hydrocarbons2 questions Basics of Organic Chemistry1 questions Chemical Bonding and Molecular Structure1 questions Haloalkanes and Haloarenes1 questions Thermodynamics1 questions Compounds Containing Nitrogen2 questions Coordination Compounds2 questions D and F Block Elements2 questions Electrochemistry1 questions Some Basic Concepts of Chemistry1 questions Chemical Kinetics and Nuclear Chemistry1 questions Chemical Equilibrium1 questions Solutions1 questions Aldehydes Ketones and Carboxylic Acids1 questions

Q1. $C_{12} H_{22} O_{11} + H_{2} O E n z y m e A Gl u c o s e C_{6} H_{12} O_{6} + F r u c t ose C_{6} H_{12} O_{6} Gl u c o s e C_{6} H_{12} O_{6} E n z y m e B 2 C_{2} H_{5} O H + 2 C O_{2}$ …
Chemistry · Biomolecules · MCQ
Q2.Choose the correct statement regarding the formation of carbocations A and B given. Includes diagram
Chemistry · Hydrocarbons · MCQ
Q3.Nitrogen can be estimated by Kjeldahl's method for which of the following compound?
Chemistry · Basics of Organic Chemistry · MCQ
Q4.Amongst the following, the linear species is :
Chemistry · Chemical Bonding and Molecular Structure · MCQ
Q5.The correct pair(s) of the ambident nucleophiles is(are) (A) $A g C N$ / $K C N$ (B) $R C O O A g$ / $R C O O K$ (C) $A g N O_{2}$ / $K N O_{2}$ (D) $A g I$ / $K I$
Chemistry · Haloalkanes and Haloarenes · MCQ
Q6.Given below are two statements : Statement I : 2-methylbutane on oxidation with $K M n O_{4}$ gives 2-methylbutan-2-ol. Statement II : n-alkanes can be easily oxidised to corresponding alcohols with $K M n O_{4}$ . Choose the correct option :
Chemistry · Hydrocarbons · MCQ
Q7.During which of the following processes, does entropy decrease? (A) Freezing of water to ice at 0 $^{\circ}$ C (B) Freezing of water to ice at $-$ 10 $^{\circ}$ C (C) $N_{2}$ (g) + 3 $H_{2}$ (g) $\to$ 2 $N H_{3}$ (g) (D) Adsorption of $C O$ (g) on lead…
Chemistry · Thermodynamics · MCQ
Q8.In the above reaction, the structural formula of (A), ''X'' and ''Y'' respectively are : Includes diagram
Chemistry · Compounds Containing Nitrogen · MCQ
Q9.Primary, secondary and tertiary amines can be separated using:
Chemistry · Compounds Containing Nitrogen · MCQ
Q10.Match List - I with List - II : Choose the correct answer from the options given below : Includes table
Chemistry · Coordination Compounds · MCQ
Q11.Fructose is an example of :
Chemistry · Biomolecules · MCQ
Q12.The common positive oxidation states for an element with atomic number 24, are :
Chemistry · D and F Block Elements · MCQ
Q13.A KCl solution of conductivity 0.14 S m $-$ 1 shows a resistance of 4.19 $Ω$ in a conductivity cell. If the same cell is filled with an HCl solution, the resistance drops to 1.03 $Ω$ . The conductivity of the HCl solution is $\times$ …
Chemistry · Electrochemistry · Numerical
Q14.On complete reaction of $F e C l_{3}$ with oxalic acid in aqueous solution containing $K O H$ , resulted in the formation of product A. The secondary valency of $F e$ in the product A is . (Round off to the Nearest…
Chemistry · Coordination Compounds · Numerical
Q15.Consider the above reaction. The percentage yield of amide product is . (Round off to the Nearest Integer). (Given : Atomic mass : C : 12.0 u, H : 1.0 u, N : 14.0 u, O : 16.0 u, Cl : 35.5 u) Includes diagram
Chemistry · Some Basic Concepts of Chemistry · Numerical
Q16.The reaction 2 $A$ + $B_{2}$ $\to$ 2 $A B$ is an elementary reaction. For a certain quantity of reactants, if the volume of the reaction vessel is reduced by a factor of 3, the rate of the reaction increases by a factor of …
Chemistry · Chemical Kinetics and Nuclear Chemistry · Numerical
Q17.Consider the reaction $N_{2} O_{4} (g) ⇌ 2 N O_{2} (g)$ The temperature at which KC = 20.4 and KP = 600.1, is K. (Round off to the Nearest Integer). [Assume all gases are…
Chemistry · Chemical Equilibrium · Numerical
Q18.In the ground state of atomic Fe(Z = 26), the spin-only magnetic moment is $\times$ 10 $-$ 1 BM. (Round off to the Nearest Integer). [Given : $3$ = 1.73, $2$ = 1.41 ]
Chemistry · D and F Block Elements · Numerical
Q19.A 1 molal $K_{4} F e (C N)_{6}$ solution has a degree of dissociation of 0.4. Its boiling point is equal to that of another solution which contains 18.1 weight percent of a non electrolytic solute A. The molar mass of A is …
Chemistry · Solutions · Numerical
Q20.The total number of C-C sigma bond/s in mesityl oxide ( $C_{6} H_{10} O$ ) is . (Round off to the Nearest Integer).
Chemistry · Aldehydes Ketones and Carboxylic Acids · Numerical