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Day 30: JEE Mains Chemistry

5 questions. Try each one first, then open its answer.

  1. Question 1

    Coordination Compounds. This type asked 4 times: 24 Jan 2023, 5 Apr 2024, 6 Apr 2024, 6 Apr 2026 S1. This one: 6 Apr 2026 S1 See all 4 of this type

    36
    Match List-I with List-II
    List-I Electronic configuration of tetrahedral metal ionList-II Crystal Field Stabilization Energy(Δt)\left( \Delta_{t} \right)
    (A)
    d2d^{2}
    		(I)-0.6
    (B)
    d4d^{4}
    		(II)-0.8
    (C)
    d6d^{6}
    		(III)-1.2
    (D)
    d8d^{8}
    		(IV)-0.4
    Choose the correct answer from the options given below :

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  2. Question 2

    Amines. This type asked 4 times: 2021 Paper 7, 29 Jan 2023, 21 Jan 2026 S1, 5 Apr 2026 S2. This one: 5 Apr 2026 S2 See all 4 of this type

    42
    Given below are two statements : Statement-I : Heating benzamide with bromine in an ethanolic solution of sodium hydroxide will give benzylamine. Statement-II : Nitration of aniline with HNO3/H2SO4{HNO}_{3}/H_{2}{SO}_{4} at 288 K produces mm-nitroaniline in higher amount than oo-nitroaniline ( pH adjusted). In the light of the above statements, choose the correct answer from the options given below:

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  3. Question 3

    Electrochemistry. This type asked 4 times: 14 Jun 2022, 29 Jun 2022, 29 Jul 2022, 5 Apr 2026 S2. This one: 5 Apr 2026 S2 See all 4 of this type

    32
    One half cell in a voltaic cell is constructed by dipping silver rod in AgNO3AgNO_{3} solution of unknown concentration, other half cell is Zn rod dipped in 1 molar solution of ZnSO4ZnSO_{4}. A voltage of 1.60 V is measured at 298 K for this cell. What is the concentration of Ag+Ag^{+}ions used in terms of log⁡x(x=[Ag+])\log x\left( x =\left\lbrack Ag^{+} \right\rbrack \right)? EZn2+/ZnΘ=−0.76 V,EAg+/AgΘ=+0.80 VE_{Zn^{2 +}/Zn}^{\Theta}= - 0.76\text{ }V,E_{Ag^{+}/Ag}^{\Theta}= + 0.80\text{ }V, 2.303RTF=0.059 V\frac{2.303RT}{F}= 0.059\text{ }V

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  4. Question 4

    The p-Block Elements. This type asked 4 times: 2021 Paper 25, 30 Jan 2023, 30 Jan 2024, 5 Apr 2026 S2. This one: 5 Apr 2026 S2 See all 4 of this type

    45
    A paper dipped in a dil. H2SO4H_{2}SO_{4} solution of ' X ' upon treatment with SO2SO_{2} gas turns into green. The compound ' X ' is :

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  5. Question 5

    Alcohols, Phenols and Ethers. This type asked 4 times: 2021 Paper 25, 26 Jun 2022, 6 Apr 2024, 5 Apr 2026 S1. This one: 5 Apr 2026 S1 See all 4 of this type

    48
    One mole of phenol is treated with dilute HNO3{HNO}_{3} at 298 K to give a mixture of products. The mixture is separated by steam distillation. The steam volatile compound ( X ) is separated. The increase in percentage of oxygen in (X) with respect to phenol is ____\_\_\_\_ 10−1%10^{- 1}\% (Given molar mass in gmol−1H:1,C:12, N:14g{mol}^{- 1}H:1,C:12,\text{ }N:14, O:16)