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Day 120: JEE Mains Chemistry

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

  1. Question 1

    Aldehydes, Ketones and Carboxylic Acids. Asked once: 22 Jan 2025 (same type asked 7 times) See all 7 of this type

    118
    →(i)CrO2Cl2 CS2(ii)H3O+(iii)NaHSO3\underset{\begin{array}{r} \left( ii \right)H_{3}O^{+} \\ \left( iii \right)NaHSO_{3} \end{array}}{\overset{\left( i \right)CrO_{2}Cl_{2\ }CS_{2}}{\rightarrow}} Filter → Residue (A) (Toluene excess) Residue (A) +HCl (dil.) →\rightarrow Compound (B) Structure of residue (A) and compound (B) Formed respectively is : [A] [B]

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  2. Question 2

    Biomolecules. Asked once: 25 Jul 2022 (same type asked 7 times) See all 7 of this type

    138
    Glycosidic linkage between C1C_{1} of α\alpha-glucose and C2C_{2} of β\beta-fructose is found in

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  3. Question 3

    Haloalkanes and Haloarenes. Asked once: 28 Jan 2025 (same type asked 7 times) See all 7 of this type

    39
    The products A and B in the following reactions, respectively are
    A⟵AgNO2CH3−CH2−CH2−Br→AgCN BA\overset{AgNO_{2}}{\longleftarrow}CH_{3}-CH_{2}-CH_{2}- Br\overset{AgCN}{\rightarrow}\text{ }B

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  4. Question 4

    Organic Chemistry - Some Basic Principles and Techniques. Asked once: 22 Jan 2025 (same type asked 7 times) See all 7 of this type

    28
    How many different stereoisomers are possible for the given molecule?

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  5. Question 5

    Some Basic Concepts of Chemistry. Asked once: 9 Apr 2024 (same type asked 7 times) See all 7 of this type

    56
    Molarity (M) of an aqueous solution containing xgxg of anhyd. CuSO4CuSO_{4} in 500 mL500\text{ }mL solution at 32 ∘C32\ ^{\circ}C is 2×10−1M2 \times10^{- 1}M. Its molality will be _____ ×10−3 m\times10^{- 3}\text{ }m. (nearest integer). [Given density of the solution =1.25 g/mL= 1.25\text{ }g/mL.]