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QJEE MAIN 2022
Sum of oxidation state (magnitude) and coordination number of cobalt in $\mathrm{Na}\left[\mathrm{Co}(\mathrm{bpy}) \mathrm{Cl}_4\right]$ is $\_\_\_\_$ .
JEE MainChemistryEasy
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QJEE MAIN 2022
Let $P$ be the plane containing the straight line $\frac{x-3}{9}=\frac{y+4}{-1}=\frac{z-7}{-5}$ and perpendicular to the plane containing the straight lines $\frac{x}{2}=\frac{y}{3}=\frac{z}{5}$ and $\frac{x}{3}=\frac{y}{7}=\frac{z}{8}$. If $d$ is...
JEE MainMathematicsEasy
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QJEE MAIN 2022
Total number of relatively more stable isomer(s) possible for octahedral complex $\left[\mathrm{Cu}(\mathrm{en})_2(\mathrm{SCN})_2\right]$ will be $\_\_\_\_$ .
JEE MainChemistryEasy
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QJEE MAIN 2022
A tuning fork of frequency 340 Hz resonates in the fundamental mode with an air column of length 125 cm in a cylindrical tube closed...
JEE MainPhysicsEasy
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QJEE MAIN 2022
Let the locus of the centre $(\alpha, \beta), \beta>0$, of the circle which touches the circle $x^2+(y-1)^2=1$ externally and also touches the $x$-axis be $L$....
JEE MainMathematicsMedium
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QJEE MAIN 2022
The disproportionation of $\mathrm{MnO}_4^{2-}$ in acidic medium resulted in the formation of two manganese compounds A and B . If the oxidation state of Mn...
JEE MainChemistryEasy
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QJEE MAIN 2022
JEE MainChemistryEasy
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QJEE MAIN 2022
A line, with the slope greater than one, passes through the point $A(4,3)$ and intersects the line $x-y-2=0$ at the point $B$. If the length...
JEE MainMathematicsMedium
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QJEE MAIN 2022
Assuming $1 \mu \mathrm{~g}$ of trace radioactive element X with a half life of 30 years is absorbed by a growing tree. The amount of...
JEE MainChemistryEasy
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QJEE MAIN 2022
The number of interhalogens from the following having square pyramidal structure is :
$$
\mathrm{ClF}_3, \mathrm{IF}_7, \mathrm{BrF}_5, \mathrm{BrF}_3, \mathrm{I}_2 \mathrm{Cl}_6, \mathrm{IF}_5, \mathrm{ClF}, \mathrm{ClF}_5
$$
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