PYQ Vault

Day 469: JEE Mains Chemistry

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

  1. Question 1

    Haloalkanes and Haloarenes. Asked once: 5 Apr 2024

    123
    Identify the major product in the following reaction.

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  2. Question 2

    Hydrocarbons. Asked once: 28 Jan 2025

    104
    Identify product [A],[B]\lbrack A\rbrack,\lbrack B\rbrack and [C]\lbrack C\rbrack in the following reaction sequence :
    CH3−C≡CH→pd/CH2[ A]→(i)O3(ii)ZnH2O[ B]+[C]{CH}_{3} - C \equiv CH\underset{H_{2}}{\overset{pd/C}{\rightarrow}}\lbrack\text{ }A\rbrack\underset{(ii)Z_{n}H_{2}O}{\overset{(i)O_{3}}{\rightarrow}}\lbrack\text{ }B\rbrack + \lbrack C\rbrack

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  3. Question 3

    Organic Chemistry - Some Basic Principles and Techniques. Asked once: 22 Jan 2025

    116
    Given below are two statement : Statement (I) : Nitrogen, sulphur, halogen and phosphorus present in an organic compound are detected by Lassaigne's Test. Statement (II) : The elements present in the compound are converted from covalent form into ionic form by fusing the compound with Magnesium in Lassaigne's test. In the light of the above statements, choose the correct answer from the options given below :

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  4. Question 4

    Organic Reaction Mechanisms. Asked once: 1 Feb 2023

    37
    In the following reaction, ' AA ' is

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  5. Question 5

    Solutions. Asked once: 29 Jan 2024

    56
    The osmotic pressure of a dilute solution is 7×105 Pa7 \times 10^{5}\text{ }Pa at 273 K273\text{ }K. Osmotic pressure of the same solution at 283 K283\text{ }K is _____ ×104Nm−2\times 10^{4}Nm^{- 2}.