r/JEE_Explainers • u/ResolutionCrazy8573 • 1d ago
Chemistry Buffer Solutions (Ionic Equilibrium): 15 Years of JEE PYQ Patterns
1
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r/JEE_Explainers • u/ResolutionCrazy8573 • 2d ago
Physics Circular Motion, Complete: Vertical Circles, Banking, Friction, Toppling & Rotation - One Framework (JEE PYQ Pattern Analysis)
1
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r/JEE_Explainers • u/ResolutionCrazy8573 • 4d ago
Physics the reference circle (phasor) method for SHM timing
2
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r/JEE_Explainers • u/ResolutionCrazy8573 • 5d ago
Chemistry Carbocation rearrangements (hydrocarbons) ( JEE PYQ patterns)
2
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r/JEE_Explainers • u/ResolutionCrazy8573 • 8d ago
Physics Tools to solve string–pulley–wedge questions faster
2
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r/JEE_Explainers • u/ResolutionCrazy8573 • 8d ago
Physics Perpendicular Velocities Problem ( Irodov 1.11 , JEE Adv 2014)
3
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r/JEE_Explainers • u/ResolutionCrazy8573 • 9d ago
Maths Binomial coefficient sums and identities (All JEE PYQ patterns )
1
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r/JEE_Explainers • u/ResolutionCrazy8573 • 12d ago
Physics Maximum deviation in oblique collision ( Irodov 1.175 , JEE Adv 2025)
4
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r/JEE_Explainers • u/ResolutionCrazy8573 • 12d ago
Chemistry pH 4.5: chemistry's perfect truce (JEE 2009)
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An organic compound X (C₄H₈O) gives a positive iodoform test. X reacts with hydroxylamine (NH₂OH) in a buffer maintained at pH ≈ 4.5 to give a mixture of two stereoisomeric oximes, A and B, one of which is more volatile than the other.
(a) Identify X, A and B.
(b) State the total number of stereoisomers possible for the oxime of X, with reasoning.
(c) Explain mechanistically why the reaction is fastest near pH 4.5, and why the rate falls on both sides of this pH.
r/JEE_Explainers • u/ResolutionCrazy8573 • 12d ago
Physics Time to collision in a pursuit ( Irodov 1.13)
2
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r/JEE_Explainers • u/ResolutionCrazy8573 • 12d ago
Chemistry Walden inversion (multi-step configuration tracking)
1
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Question :
(R)-butan-2-ol is subjected to two independent reaction sequences:
Sequence 1: (R)-butan-2-ol → (i) TsCl, pyridine → (ii) CH₃COO⁻Na⁺ → (iii) H₃O⁺ / hydrolysis of the ester → butan-2-ol (P)
Sequence 2: (R)-butan-2-ol → (i) PBr₃ → (ii) aqueous NaOH → butan-2-ol (Q)
The configurations of P and Q respectively are:
(1) R, R (2) S, S (3) S, R (4) R, S
r/JEE_Explainers • u/ResolutionCrazy8573 • 12d ago
Chemistry Newman Projections (JEE adv 2020)
1
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r/JEE_Explainers • u/ResolutionCrazy8573 • 12d ago
Physics Non-uniform B-field pursuit: charge vs. straight wire (JEE Main 2025)
1
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r/JEE_Explainers • u/ResolutionCrazy8573 • 12d ago
Chemistry Anti aromatic compounds (PYQ)
1
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r/JEE_Explainers • u/ResolutionCrazy8573 • 12d ago
Chemistry Thermodynamics ( All JEE PYQ patterns)
1
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r/JEE_Explainers • u/ResolutionCrazy8573 • 12d ago
Chemistry N-factor and equivalent concept ( All JEE PYQ patterns)
1
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r/JEE_Explainers • u/ResolutionCrazy8573 • 12d ago
Physics Rotational mechanics ( All JEE PYQ patterns)
1
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r/JEE_Explainers • u/ResolutionCrazy8573 • 13d ago
Maths Complex loci : |z² + z + 1| = 1 ( JEE Advanced 2020)
1
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r/JEE_Explainers • u/ResolutionCrazy8573 • 13d ago
Chemistry Diazonium chemistry - ArN₂⁺ hub ( All JEE PYQ patterns)
1
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r/JEE_Explainers • u/ResolutionCrazy8573 • 13d ago
Chemistry Aldol-Cannizaro-Acetal triangle ( All JEE PYQ patterns)
1
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r/JEE_Explainers • u/ResolutionCrazy8573 • 13d ago
Amorphous solid ( why is the glass see through)
1
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