Chemistry · JEE Main

JEE Main 2023 · 6 Apr 2023 Shift 2

2023120 marks30 questions

24 of its 30 questions are here. The rest have a figure or are still being checked, so for now they're only in the official PDF.

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Source: JEE (Main) 2023, Paper 1 (B.E./B.Tech), 6 Apr 2023 Shift 2, Chemistry, published by NTA. The official PDF

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24 questions

Q61Section A4 marks
$The volume of 0.02 M aqueous HBr required to neutralize 10.0 mL of 0.01 M aqueous Ba(OH)₂ is (Assume complete neutralization)$
1. A $2.5 mL$
2. B $5.0 mL$
3. C $7.5 mL$
4. D $10.0 mL$
Q62Section A4 marks
$If the radius of the first orbit of hydrogen atom is a₀, then de Broglie’s wavelength of electron in 3rd orbit is$
1. A $3πa₀$
2. B $6πa₀$
3. C $πa₀/3$
4. D $πa₀/6$
Q64Section A4 marks
$Which one of the following elements will remain as liquid inside pure boiling water?$
1. A $Li$
2. B $Ga$
3. C $Cs$
4. D $Br$
Q65Section A4 marks
$The product, which is not obtained during the electrolysis of brine solution is$
1. A $Cl₂$
2. B $H₂$
3. C $HCl$
4. D $NaOH$
Q66Section A4 marks
$Structures of BeCl₂ in solid state, vapour phase and at very high temperature respectively are:$
1. A $Dimeric, Polymeric, Monomeric$
2. B $Polymeric, Dimeric, Monomeric$
3. C $Polymeric, Monomeric, Dimeric$
4. D $Monomeric, Dimeric, Polymeric$
Q67Section A4 marks
$Ion having highest hydration enthalpy among the given alkaline earth metal ions is:$
1. A $Be²⁺$
2. B $Ca²⁺$
3. C $Sr²⁺$
4. D $Ba²⁺$
Q68Section A4 marks
$Group-13 elements react with O₂ in amorphous form to form oxides of type M₂O₃ (M = element). Which among the following is the most basic oxide?$
1. A $B₂O₃$
2. B $Al₂O₃$
3. C $Ga₂O₃$
4. D $Tl₂O₃$
Q69Section A4 marks
$During the reaction of permanganate with thiosulphate, the change in oxidation of manganese occurs by value of 3. Identify which of the below medium will favour the reaction.$
1. A $aqueous neutral$
2. B $aqueous acidic$
3. C $both aqueous acidic and faintly alkaline$
4. D $both aqueous acidic and neutral$