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Day 209: JEE Mains Chemistry

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

  1. Question 1

    Coordination Compounds. Asked once: 2 Apr 2025 (same type asked 12 times) See all 12 of this type

    108
    The type of hybridization and the magnetic property of [MnCl6]3−\left\lbrack MnCl_{6} \right\rbrack^{3 -} are :

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  2. Question 2

    Hydrocarbons. Asked once: 8 Apr 2024 (same type asked 11 times) See all 11 of this type

    146
    Total number of aromatic compounds among the following compounds is____.

  3. Question 3

    Some Basic Concepts of Chemistry. Asked once: 22 Jan 2025 (same type asked 11 times) See all 11 of this type

    46
    Some CO2CO_{2} gas was kept in a sealed container at a pressure of 1 atm and at 273 K . This entire amount of CO2CO_{2} gas was later passed through an aqueous solution of Ca(OH)2Ca(OH)_{2}. The excess unreacted Ca(OH)2Ca(OH)_{2} was later neutralized with 0.1 M of 40 mL HCl . If the volume of the sealed container of CO2CO_{2} was x , then x is _________\_\_\_\_\_\_\_\_\_ cm3cm^{3} (nearest integer). [Given : The entire amount of CO2( g)CO_{2}(\text{ }g) reacted with exactly half the initial amount of Ca(OH)2Ca(OH)_{2} present in the aqueous solution.]

  4. Question 4

    Coordination Compounds. Asked once: 7 Apr 2025 (same type asked 10 times) See all 10 of this type

    124
    The number of paramagnetic metal complex species among [Co(NH3)6]3+, [Co(C2O4)3]3−\left\lbrack Co\left( {NH}_{3} \right)_{6} \right\rbrack^{3 +},\ \left\lbrack Co\left( C_{2}O_{4} \right)_{3} \right\rbrack^{3 -}, [MnCl6]3−,[Mn(CN)6]3−,[CoF6]3−,[Fe(CN)6]3−\left\lbrack {MnCl}_{6} \right\rbrack^{3 -},\left\lbrack Mn(CN)_{6} \right\rbrack^{3 -},\left\lbrack {CoF}_{6} \right\rbrack^{3 -},\left\lbrack Fe(CN)_{6} \right\rbrack^{3 -} and [FeF6]3−\left\lbrack {FeF}_{6} \right\rbrack^{3 -} with same number of unpaired electrons is.

  5. Question 5

    Some Basic Concepts of Chemistry. Asked once: 4 Apr 2026 S2 (same type asked 10 times) See all 10 of this type

    26
    The correct order of total number of atoms present in (A) 2 moles of cyclohexane (B) 684 g of sucrose (C) 90.8 L of dihydrogen at STP

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