1
JEE Main 2021 (Online) 27th August Morning Shift
Numerical
+4
-1
The number of moles of CuO, that will be utilized in Dumas method for estimation nitrogen in a sample of 57.5 g of N, N-dimethylaminopentane is _____________ $$\times$$ 10$$-$$2. (Nearest integer)
Your input ____
2
JEE Main 2021 (Online) 27th August Morning Shift
Numerical
+4
-1
When 10 mL of an aqueous solution of KMnO4 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 KMnO4 in grams per litre is __________ $$\times$$ 10$$-$$2. (Nearest integer)
[Atomic mass of K = 39, Mn = 55, O = 16]
[Atomic mass of K = 39, Mn = 55, O = 16]
Your input ____
3
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 ____
4
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 AgNO3 [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)
(Atomic masses of Ag and Cl are 107.87 and 35.5 respectively)
Your input ____
Questions Asked from Practical Organic Chemistry (Numerical)
Number in Brackets after Paper Indicates No. of Questions
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