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Amines

JEE Main 2024 (Online) 8th April Morning ShiftNumericalEasy📈 Topic in 24% papers+4
Ques. 1JEE Main 2024, 8 April (Morning Shift)

If 279 g of aniline is reacted with one equivalent of benzenediazonium chloride, the maximum amount of aniline yellow formed will be g. (nearest integer) (consider complete conversion).

Answer

591

Solution

Coupling occurs para to -NH2:

[figure]

[figure]

Aniline yellow (p-aminoazobenzene, C12H11N3): M = 197 g mol-1

Moles of aniline = 27993 = 3 mol; the ratio is 1 : 1, so 3 mol aniline yellow forms.

∴ Mass = 3 197 = 591 g

Answer: 591

Keep practising — Amines

Ques. 2JEE Main 2024, 8 April (Morning Shift)

Number of amine compounds from the following giving solids which are soluble in NaOH upon reaction with Hinsberg's reagent is . [figure]

Ques. 3JEE Main 2024, 8 April (Evening Shift)

Given below are two statements : In the light of the above statements, choose the correct answer from the options given below :

  1. Statement I is false but Statement II is true
  2. Both Statement I and Statement II are true
  3. Both Statement I and Statement II are false
  4. Statement I is true but Statement II is false
Ques. 4JEE Main 2024, 6 April (Morning Shift)

9.3 g of pure aniline upon diazotisation followed by coupling with phenol gives an orange dye. The mass of orange dye produced (assume 100% yield/conversion) is g. (nearest integer)

Ques. 5JEE Main 2024, 6 April (Evening Shift)

An amine (X) is prepared by ammonolysis of benzyl chloride. On adding p-toluenesulphonyl chloride to it the solution remains clear. Molar mass of the amine (X) formed is g mol-1. (Given molar mass in g mol-1 C : 12, H : 1, O : 16, N : 14)

Ques. 6JEE Main 2024, 5 April (Morning Shift)

9.3 g of pure aniline is treated with bromine water at room temperature to give a white precipitate of the product 'P'. The mass of product 'P' obtained is 26.4 g. The percentage yield is %.

Ques. 7JEE Main 2024, 5 April (Evening Shift)

X g of ethanamine was subjected to reaction with NaNO2/HCl followed by hydrolysis to liberate N2 and HCl. The HCl generated was completely neutralised by 0.2 moles of NaOH. X is g.

Ques. 8JEE Main 2024, 4 April (Morning Shift)

Xg of ethylamine is subjected to reaction with NaNO2/HCl followed by water; evolved dinitrogen gas which occupied 2.24 L volume at STP. X is 10-1 g.

Ques. 9JEE Main 2024, 4 April (Evening Shift)

From 6.55 g of aniline, the maximum amount of acetanilide that can be prepared will be 10-1 g.

Ques. 10JEE Main 2024, 4 April (Evening Shift)

Phthalimide is made to undergo following sequence of reactions. [figure] Total number of bonds present in product 'P' is/are .

Ques. 11JEE Main 2024, 1 February (Morning Shift)

Given below are two statements : In the light of the above statements, choose the most appropriate answer from the options given below :

  1. Both Statement I and Statement II are correct
  2. Both Statement I and Statement II are incorrect
  3. Statement I is correct but Statement II is incorrect
  4. Statement I is incorrect but Statement II is correct

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