JEE Main 29 January 2025 Chemistry Question Paper with Answer Key Solutions (Available)
Download here the memory-based JEE Main 29 January 2025 Chemistry question paper with answer key solutions for both Shift 1 and Shift 2. Chemistry question paper PDFs by top coaching institutes will also be available here.
JEE Main 29 January 2025 Chemistry Question Paper: Test takers can anticipate their probable scores for JEE Main 29 January 2025 Chemistry examination by going through the question paper and unofficial answer key solutions. The chemistry question paper comprises 25 questions in Paper 1 (B.Tech), out of which 20 are multiple-choice questions and 10 are numerical value questions. Furthermore, find the Session 1 Day 5 question paper along with answer keys for the other two subjects here. Candidates can also access the question paper PDFS for JEE Main 29 January 2025 Chemistry for Shift 1 and 2 by Resonance, Aakash, and Vedantu.
| Toughest Shift of JEE Main January 2025 (Session 1) | Easiest Shift of JEE Main January 2025 (Session 1) |
JEE Main 29 January 2025 Chemistry Shift 2 Question Paper with Answer Key Solutions
Here is JEE Main 29 January 2025 Chemistry question paper with answer key solutions for Shift 2.
| Q. No. | Questions | Answers |
| 1 | Which of the following form most stable carbocation? | (Ph) 3 C-Br |
| 2 | Number of σ and π bonds respectively in hex-1-en-4-yne are | 13, 3 |
| 3 | 0.41 g of BaSO 4 is obtained from 0.2 g of organic compound in Carius method. What is the percentage of sulphur present in organic compound? | 28% |
| 4 | Which element in group 15 has the lowest Ionisation energy? | Bi |
| 5 | The number of benzenoid structural isomers having molecular formula C 9 H 12 which do not give Baeyer's reagent test is? | 8 |
| 6 |
Consider the following thermochemical reactions and choose the correct option.
C(diamond) → C(graphite) + x KJ C(diamond) + O 2 → CO 2 + y KJ C(graphite) + O 2 → CO 2 + z KJ | x = y - z |
| 7 | Which of the following will give azo dye test? | Aniline |
| 8 | Which of the following is an essential amino acid? | Valine |
| 9 | Which of the following ether react with HBr to form phenol? | |
| 10 | A drug becomes ineffective when it decomposes to 50% its concentration. If 16 mg of said drug becomes 4 mg in 12 months, find the time in which drug becomes ineffective given that decomposition of drug follows first order kinetics. | 6 months |
| 11 |
Which of the following gives predominantly O
2
on electrolysis among the following?
A. Aq. AgNO 3 (Pt electrodes) B. White. AgNO 3 (Ag electrodes) C. Conc. H 2 SO 4 (Pt electrodes) D. Dilute H 2 SO 4 (Pt electrodes) | AD |
| 12 |
Determine the type of oxide formed by an element (A) that has the smallest size among the following.
Li, Na, K, Be, B, Mg | A 2 O 3 |
| 13 |
Statement-I: In partition chromatography a thin film of liquid acts as stationary phase.
Statement-II: Paper chromatography is not a type of partition chromatography. | Statement 1 is correct, Statement 2 is incorrect |
| 14 |
7.3 g Benzalacetone is synthesized from 10.6 g of benzaldehyde using acetone as another reactant.
Percentage yield of Benzalacetone is | 50% |
| 15 | How many spectral lines are observed when a sample of hydrogen atoms d excited from n = 4 to n = 1? | 6 |
| 16 | Find number of non-bonding electron in NO 2 - ion is | 12 |
JEE Main January 2025 Chemistry Shift 1 Question Paper with Answer Key Solutions
Candidates can obtain the Chemistry question paper below with answer key solutions for JEE Main 29 January 2025 Shift 1.
| Q. No. | Questions | Answers |
| 1 | Which of the following is animal starch? | Glycogen |
| 2 |
Statement-1:
Correct order of ionic radius for Mg
2+
, Na
+
, O
2-
& F
-
is F
-
> O
2-
> Na
+
> Mg
2+
Statement-2: Correct order of magnitude of gain Enthalpy for 17 th group follows order CI > F > Br > I (Magnitude only) | Statement 1 is incorrect & Statement 2 is correct |
| 3 |
Calculate the total number of sigma and π bond in the given molecule?
| 15 bonds |
| 4 |
Chromite ore + Na
2
CO
3
+ O
2
→ insoluble product containing Fe.
Calculate the molar mass of insoluble product formed. (Given: Molar mass of Cr = 52 g/mol, Na = 23 g/mol, Fe = 56 g/mol, 0 = 16 g/mol) | 160 |
| 5 |
Consider the following complexes-
1. [Mn(CN) 6 ] 4- 2. [Fe(CN) 6 ] 4- 3. [Fe(CN) 6 ] 3- 4. [Co(CN) 6 ] 3- Correct order of CFSE (Δ 0 ) will be | 4>3>2>1 |
| 6 |
Consider the following reaction
Identify the final product P: | |
| 7 | What is the value of van't Hoff Factor for A 2 B if 30% of A 2 B is dissociated? | 1.60 |
| 8 |
Find the order of the reaction
A+B → F if the mechanism of the reaction is given below: Step 1: A + B → D (slow) Step 2: D → C + E (fast) Step 3: C+E → F (fast) | 2 |
| 9 |
Match the following
(A) [Co(OX) 3 ] 3- - (i) sp 3 d 2 (B) [FeF 6 ] 3- - (ii) d 2 sp 3 (C) [Ni(CO) 4 ] - (iii) dsp 2 (D) [PtCl 4 ] 2- - (iv) sp 3 | A-(ii), B-(i), C-(iv), D-(iii) |
| 10 |
What is the correct Nernst equation representation for the following cell reaction
Mg(s) → Mg 2+ +2e - Ag + +e - → Ag(s) | |
| 11 | The correct order of melting point of d-block elements is: | Fe > Mn |
| 12 |
Consider the following reaction-
Find the mass of final product (D) formed in gm (nearest integer) | 13 |
| 13 | λ m is directly proportional to √c for an electrolyte, then molar conductance for the same electrolyte at infinite dilution shows | small increase |
| 14 | Given that the ionisation enthalpy of element E (g) is 300 kJ/mol and electron gain enthalpy of A, B, C and D gases atoms are -320 kJ/mol, -340 kJ/mol, -200 kJ/mol and -250 kJ/mol, then what will be the correct order of ionic nature of compounds? | EB>EA>ED>EC |
| 15 | Graph between de Broglie wavelength (λ D ) and kinetic energy (K) of an electron is | |
| 16 |
Which of the following ions is strongest oxidising agent
| Pb 4+ |
| 17 |
How many of following can act as nucleophiles
| 6 |
| 18 |
Consider the following reaction
If P is total pressure at equilibrium & K p is equilibrium constant. Then α in terms of K p & P is (Assume α << 1) | 3√2k p 2 /P |
You may also find important |
| Parameter | Link |
| Safe Score | Expected Safe Score in JEE Mains January 2025 |
| Safe Percentile | Expected Safe Percentile in JEE Main 2025 Session 1 |
| Question Paper (All Days) | JEE Main Question Paper January 2025 Shift 1 and 2 |
| JEE Main Percentile to Marks | Expected Marks for JEE Main Percentile January 2025 |
| Cutoff Percentile | JEE Main Expected Cutoff Percentile January 2025 |
| Percentile Score | JEE Main Expected Percentile Score January 2025 |
| Cutoff Marks | Minimum Marks in JEE Mains to Qualify for JEE Advanced 2025 |
JEE Main 29 January 2025 Chemistry Question Paper PDF Download
Download here JEE Main 29 Jan 2025 Chemistry question paper and answer key by CollegeDekho as provided above in PDF format:
| Shift | Chemistry Question Paper with Answers Links |
| Shift 1 | JEE Main 2025 Question Paper Chemistry 29 January Shift 1 PDF |
| Shift 2 | JEE Main 2025 Question Paper Chemistry 29 January Shift 2 PDF |
JEE Main 29 January 2025 Question Paper: Physics and Mathematics
For other subjects across both shifts, check and download JEE Main 29 January 2025 question paper here:
| Parameter | Question Paper Link |
| Physics | JEE Main 2025 January 29 Shift 1, 2 Physics Question Paper with Answer Key Solutions |
| Mathematics | JEE Main 2025 January 2025 Shift 1, 2 Mathematics Question Paper with Answer Key Solutions |
JEE Main 29 January 2025 Chemistry Question Paper PDFs by Coaching Institutions
For both Shift 1 and Shift 2, JEE Main 29 January 2025 Chemistry answer key and question paper PDF links have been provided as released by Resonance, Aakash, and Vedantu in the below table:
| Coaching Institute | Shifts | Chemistry Question Paper with Answer Key PDFs |
| Resonance | Shift 1 | PDF download link to be updated soon |
| Shift 2 | Resonance JEE Main Chemistry Question Paper and Answer Key 2025 January 29 Shift 2 | |
| Aakash | Shift 1 | Aakash JEE Main Chemistry Question Paper and Answer Key 2025 January 29 Shift 1 |
| Shift 2 | PDF download link to be updated soon | |
| Vedantu | Shift 1 | PDF download link to be updated soon |
| Shift 2 | PDF download link to be updated soon |
Subject-wise JEE Mains Marks vs Percentile 2025 |
| Name of the Subject | Link |
| Physics | JEE Main Physics Expected Marks vs Percentile 2025 |
| Chemistry | JEE Main Chemistry Expected Marks vs Percentile 2025 |
| Mathematics | JEE Main Mathematics Expected Marks vs Percentile 2025 |
| Event | Link for Expected/ Official Dates |
| Response Sheet | JEE Main Response Sheet January 2025 Expected Release Date |
| Answer Key | JEE Main Answer Key January 2025 Expected Release Date |
| Result | JEE Main Result Date January 2025 |
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