1
JEE Main 2022 (Online) 27th June Evening Shift
Numerical
+4
-1
0.25 g of an organic compound containing chlorine gave 0.40 g of silver chloride in Carius estimation. The percentage of chlorine present in the compound is ___________. [in nearest integer]
(Given : Molar mass of Ag is 108 g mol$$-$$1 and that of Cl is 35.5 g mol$$-$$1)
Your input ____
2
JEE Main 2022 (Online) 25th June Evening Shift
Numerical
+4
-1
How many of the given compounds will give a positive Biuret test ____________ ?
Glycine, Glycylalanine, Tripeptide, Biuret
Your input ____
3
JEE Main 2021 (Online) 31st August Evening Shift
Numerical
+4
-1
The transformation occurring in Duma's method is given below :
$${C_2}{H_7}N + \left( {2x + {y \over 2}} \right)CuO \to xC{O_2} + {y \over 2}{H_2}O + {z \over 2}{N_2} + \left( {2x + {y \over 2}} \right)Cu$$
The value of y is ______________. (Integer answer)
$${C_2}{H_7}N + \left( {2x + {y \over 2}} \right)CuO \to xC{O_2} + {y \over 2}{H_2}O + {z \over 2}{N_2} + \left( {2x + {y \over 2}} \right)Cu$$
The value of y is ______________. (Integer answer)
Your input ____
4
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 ____
Questions Asked from Practical Organic Chemistry (Numerical)
Number in Brackets after Paper Indicates
No. of Questions
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