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JEE Main 2023 Chemistry Question Paper Jan 30 Shift 1 PDF has been updated here. Candidates can download the memory-based JEE Main 2023 Chemistry Question Paper PDF with Solution and Answer Key for Jan 30 Shift 1 using the link below. JEE Main Chemistry Question Paper is divided into two sections, Section A with 20 MCQs and Section B with 10 numerical type questions. Candidates are required to answer all questions from Section A and any 5 questions from section B.
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JEE Main 2023 Chemistry Question Paper Jan 30 Shift 1- Download PDF
| JEE Main 2023 30 Jan Shift 1 Chemistry Question Paper with Solution PDF |  Download |
Check Solution |
Which of the following compounds would give the following set of qualitative analysis?
(i) Fehling’s Test: Positive
(ii) Na fusion extract upon treatment with sodium nitroprusside gives a blood red colour but not
- (1)
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- (2)
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- (3)
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- (4)
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What is the correct order of acidity of the protons marked A-D in the given compounds?
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Ketoses give Seliwanoff's test faster than Aldoses.
Reason (R): Ketoses undergo β-elimination followed by formation of furfural.
In light of the above statements, choose the correct answer from the options given below:
In the extraction of copper, its sulphide ore is heated in a reverberatory furnace after mixing with silica to:
Amongst the following compounds, which one is an antacid?
The major products 'A' and 'B', respectively, are:
- (1)
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- (2)
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- (3)
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- (4)
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Benzyl isocyanide can be obtained by:
Choose the correct answer from the options given below:
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): In expensive scientific instruments, silica gel is kept in watch-glasses or in semipermeable membrane bags.
Reason (R): Silica gel adsorbs moisture from air via adsorption, thus protects the instrument from water corrosion (rusting) and/or prevents malfunctioning.
In the light of the above statements, choose the correct answer from the options given below:
View Solution
Match List I with List II:
Caprolactam when heated at high temperature in presence of water gives:
The alkaline earth metal sulphate(s) which are readily soluble in water is/are:
Which of the following is the correct order of ligand field strength?
View Solution
Formation of photochemical smog involves the following reaction in which A, B, and C are respectively.
During the qualitative analysis of SO\(_3\)\(^{2–}\) using dilute H\(_2\)SO\(_4\), SO\(_2\) gas is evolved which turns K\(_2\)Cr\(_2\)O\textsubscript{7 solution (acidified with dilute H\(_2\)SO\(_4\)):
To inhibit the growth of tumours, identify the compounds used from the following:
In the wet tests for identification of various cations by precipitation, which transition element cation doesn’t belong to group IV in qualitative inorganic analysis?
Match List I with List II
Choose the correct answer from the options given below:
For OF\(_2\) molecule consider the following:
Lithium aluminium hydride can be prepared from the reaction of:
Match List – I with List – II
Choose the correct answer from the options given below:
Consider the cell \[ Pt(s) | H_2 (g, 1 atm) | H^+ (aq, 1M) || Fe^{3+} (aq) , Fe^{2+} (aq) || Pt(s). \]
When the potential of the cell is 0.712 V at 298 K, the ratio \( \frac{[Fe^{2+}]}{[Fe^{3+}]} \) is _____. (Nearest integer)
Given: \[ Fe^{3+} + e^- \rightarrow Fe^{2+}, \quad E^\circ_{Fe^{3+}|Fe^{2+}} = 0.771 \, V. \] \[ \frac{2.303RT}{F} = 0.06 \, V. \]
A 300 mL bottle of soft drink has 0.2 M CO\(_2\) dissolved in it. Assuming CO\(_2\) behaves as an ideal gas, the volume of the dissolved CO\(_2\) at STP is ______ mL. (Nearest integer)
Given: At STP, molar volume of an ideal gas is 22.7 L mol\(^{-1}\).
A solution containing 2 g of a non-volatile solute in 20 g of water boils at 373.52 K. The molecular mass of the solute is ______ g mol\(^{-1}\). (Nearest integer)
Given: Water boils at 373 K, \( K_b \) for water = \( 0.52 \, K kg mol^{-1} \).
If compound A reacts with B following first-order kinetics with rate constant \( 2.011 \times 10^{-3} \, s^{-1} \), the time taken by A (in seconds) to reduce from 7 g to 2 g will be ______. (Nearest Integer)
Given: \[ \log 5 = 0.698, \quad \log 7 = 0.845, \quad \log 2 = 0.301. \]
The energy of one mole of photons of radiation of frequency \( 2 \times 10^{12} \, Hz \) in J mol\(^{-1}\) is ______. (Nearest integer)
Given: \( h = 6.626 \times 10^{-34} \, Js \), \( N_A = 6.022 \times 10^{23} \, mol^{-1} \).
The number of electrons involved in the reduction of permanganate to manganese dioxide in acidic medium is ______.
When 2 liters of ideal gas expands isothermally into a vacuum to a total volume of 6 liters, the change in internal energy is ______ J. (Nearest integer)
600 mL of 0.01 M HCl is mixed with 400 mL of 0.01 M H\(_2\)SO\(_4\). The pH of the mixture is ______\(\times 10^{-2}\). (Nearest integer)
Given: \[ \log 2 = 0.30, \quad \log 3 = 0.48, \quad \log 5 = 0.69, \quad \log 7 = 0.84, \quad \log 11 = 1.04. \]
A trisubstituted compound ‘A’, \( C_{10}H_{12}O_2 \), gives neutral FeCl\(_3\) test positive. Treatment of compound ‘A’ with NaOH and CH\(_3\)Br gives \( C_{11}H_{14}O_2 \), with hydroiodic acid gives methyl iodide and with hot conc. NaOH gives a compound ‘B’, \( C_{10}H_{12}O_2 \). Compound ‘A’ also decolourises alkaline KMnO\(_4\). The number of \(\pi\) bond/s present in the compound ‘A’ is ______.
Some amount of dichloromethane (\( CH_2Cl_2 \)) is added to 671.141 mL of chloroform (\( CHCl_3 \)) to prepare a \( 2.6 \times 10^{-3} \, M \) solution of \( CH_2Cl_2 \) (DCM). The concentration of DCM is ______ ppm (by mass).
Given: Atomic mass \( C = 12 \), \( H = 1 \), \( Cl = 35.5 \), density of \( CHCl_3 = 1.49 \, g cm^{-3} \).
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JEE Main 2023 Chemistry Analysis Jan 30 Shift 1
JEE Main 2023 Paper Analysis for Chemistry paper scheduled on January 30 Shift 1 has been updated here. Students found JEE Main 2023 Jan 30 Shift 1 paper moderate with the Chemistry paper as a bit difficult compared to the previous exam shifts. Candidates will be able to check the topics with the highest weightage, difficulty level and memory-based Chemistry questions.
JEE Main 2023 Chemistry Question Paper Pattern
| Feature | Question Paper Pattern |
|---|---|
| Examination Mode | Computer-based Test |
| Exam Language | 13 languages (English, Hindi, Assamese, Bengali, Gujarati, Kannada, Malayalam, Marathi, Odia, Punjabi, Tamil, Telugu, and Urdu) |
| Exam Duration | 3 hours |
| Sectional Time Limit | None |
| Chemistry Marks | 100 marks |
| Total Number of Questions Asked | 20 MCQs + 10 Numerical Type Questions |
| Total Number of Questions to be Answered | 20 MCQs + 5 Numerical Type Questions |
| Marking Scheme | +4 for each correct answer |
| Negative Marking | -1 for each incorrect answer |
Also Check:
JEE Main 2022 Question Paper
JEE Main 2023 aspirants can practice and check their exam prep level by attempting the previous year question papers as well. The table below shows JEE Main 2022 Question Paper PDF for B.E./B.Tech to practice.
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