1

JEE Main 2021 (Online) 27th August Morning Shift

Numerical

+4

-1

When 10 mL of an aqueous solution of KMnO

[Atomic mass of K = 39, Mn = 55, O = 16]

_{4}was titrated in acidic medium, equal volume of 0.1 M of an aqueous solution of ferrous sulphate was required for complete discharge of colour. The strength of KMnO_{4}in grams per litre is __________ $$\times$$ 10^{$$-$$2}. (Nearest integer)[Atomic mass of K = 39, Mn = 55, O = 16]

Your input ____

2

JEE Main 2021 (Online) 26th August Evening Shift

Numerical

+4

-1

In the sulphur estimation, 0.471 g of an organic compound gave 1.44 g of barium sulphate. The percentage of sulphur in the compound is ____________%. (Nearest integer)

(Atomic Mass of Ba = 137 u)

(Atomic Mass of Ba = 137 u)

Your input ____

3

JEE Main 2021 (Online) 27th July Morning Shift

Numerical

+4

-1

An organic compound is subjected to chlorination to get compound A using 5.0 g of chlorine. When 0.5 g of compound A is reacted with AgNO

(Atomic masses of Ag and Cl are 107.87 and 35.5 respectively)

_{3}[Carius Method], the percentage of chlorine in compound A is ____________ when it forms 0.3849 g of AgCl. (Round off to the Nearest Integer)(Atomic masses of Ag and Cl are 107.87 and 35.5 respectively)

Your input ____

4

JEE Main 2021 (Online) 25th July Evening Shift

Numerical

+4

-1

0.8 g of an organic compound was analyzed by Kjeldahl's method for the estimation of nitrogen. If the percentage of nitrogen in the compound was found to be 42%, then ______________ mL of 1 M H

_{2}SO_{4}would have been neutralized by the ammonia evolved during the analysis.Your input ____

Questions Asked from Practical Organic Chemistry (Numerical)

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