1
JEE Main 2022 (Online) 25th July Morning Shift
Numerical
+4
-1

While estimating the nitrogen present in an organic compound by Kjeldahl's method, the ammonia evolved from $$0.25 \mathrm{~g}$$ of the compound neutralized $$2.5 \mathrm{~mL}$$ of $$2 \,\mathrm{M} \,\mathrm{H}_{2} \mathrm{SO}_{4}$$. The percentage of nitrogen present in organic compound is ______________.

2
JEE Main 2022 (Online) 30th June Morning Shift
Numerical
+4
-1

An organic compound with 51.6% sulfur is heated in a Carius tube. The amount of this compound which will form 0.752 g of barium sulphate is ___________ $$\times$$ 10$$-$$1 g.

(Given molar mass of barium sulphate 233 g mol$$-$$1) (Nearest integer).

3
JEE Main 2022 (Online) 29th June Morning Shift
Numerical
+4
-1

Kjeldahl's method was used for the estimation of nitrogen in an organic compound. The ammonia evolved from 0.55 g of the compound neutralised 12.5 mL of 1 M H2SO4 solution. The percentage of nitrogen in the compound is _____________. (Nearest integer)

4
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)

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