Principles Related to Practical Chemistry

JEE Main 2025 (Online) 22nd January Morning ShiftNumericalEasy📈 Topic in 66% papers+4

Ques. 1JEE Main 2025, 22 January (Morning Shift)

In Carius method for estimation of halogens, 180 mg of an organic compound produced 143.5 mg of AgCl. The percentage composition of chlorine in the compound is %. (Given : molar mass in g mol-1 of Ag:108, Cl:35.5)

Answer

Solution

All Cl is converted to AgCl: \% Cl = 35.5143.5 143.5180 100

= 35.5180 100 = 19.7 20

Answer: 20

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Ques. 2JEE Main 2025, 22 January (Evening Shift)

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

Both Statement I and Statement II are false
Statement I is true but Statement II is false
Statement I is false but Statement II is true
Both Statement I and Statement II are true

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All JEE Main Chemistry chapters

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Inorganic ChemistryClassification of Elements and Periodicity in Properties Chemical Bonding and Molecular Structure p-Block Elements (Group 13 & 14)p-Block Elements (Group 15–18)d- and f-Block Elements Coordination Compounds

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