JEE Main 2026 — Chemistry Organic Chemistry
Match List - I with List - II.
| List - I Vitamin | List - II Name |
|---|---|
| A. Vitamin B1 | I. Pyridoxine |
| B. Vitamin B2 | II. Ascorbic acid |
| C. Vitamin B6 | III. Thiamine |
| D. Vitamin C | IV. Riboflavin |
Choose the correct answer from the options given below :
Held on 2 Apr 2026 · Verified 6 Jul 2026.
A-II, B-I, C-III, D-IV
A-IV, B-III, C-II, D-I
A-III, B-IV, C-I, D-II
A-I, B-III, C-II, D-IV
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The correct order of the rate of reaction of the following reactants with nucleophile by SN1 mechanism is: (Given : Structure I and II are rigid) 
Identify the incorrect statements.  Choose the correct answer from the options given below:
For the following Friedel Craft's alkylation reaction, which of the statements are correct?  A. Major product is n-propyl benzene. B. iso-propyl carbocation intermediate is also generated. C. Multiple substitution is inevitable. D. Introducing electron-donating substituent on benzene will not produce any alkyl benzene. Choose the correct answer from the options given below:
Match the LIST-I with LIST-II <table class="pyq-table"><tbody><tr><th>List-I (Reaction)</th><th>List-II (Mechanism)</th></tr><tr><td>A. Williamson Synthesis</td><td>I. Electrophilic addition</td></tr><tr><td>B. Friedel Craft Reaction</td><td>II. Free radical substitution</td></tr><tr><td>C. Bromination of vinyl benzene</td><td>III. Nucleophilic substitution</td></tr><tr><td>D. Chlorination of toluene in light</td><td>IV. Electrophilic substitution</td></tr></tbody></table> Choose the correct answer from the options given below:
Consider the following reactions sequence  When the product (P) is subjected to Carius analysis using $AgNO_3$, $1.0$ g of the product (P) will produce _______ g of the precipitate of AgBr. (Nearest Integer) (Given: molar mass in g mol$^{-1}$ C : 12, H : 1, O : 16, N : 14, Br : 80, Ag : 108)
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