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

Consider the following metal complexes :

$$\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}$$

$$\left[\mathrm{CoCl}\left(\mathrm{NH}_{3}\right)_{5}\right]^{2+}$$

$$\left[\mathrm{Co}(\mathrm{CN})_{6}\right]^{3-}$$

$$\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{5}\left(\mathrm{H}_{2} \mathrm{O}\right)\right]^{3+}$$

The spin-only magnetic moment value of the complex that absorbes light with shortest wavelength is _____________ B. M. (Nearest integer)

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2
JEE Main 2022 (Online) 25th July Morning Shift
Numerical
+4
-1
Change Language

Among Co3+, Ti2+, V2+ and Cr2+ ions, one if used as a reagent cannot liberate H2 from dilute mineral acid solution, its spin-only magnetic moment in gaseous state is ___________ B.M. (Nearest integer)

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3
JEE Main 2022 (Online) 25th July Morning Shift
Numerical
+4
-1
Change Language

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 ______________.

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

The number of sp3 hybridised carbons in an acyclic neutral compound with molecular formula C4H5N is ___________.

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