The final product ‘A’ in the following reaction sequence
JEE MainChemistryEasy
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QJEE MAIN 2022
Given below are two statements . Statement I: In $\mathrm{CuSO}_4 \cdot 5 \mathrm{H}_2 \mathrm{O}, \mathrm{Cu}-\mathrm{O}$ bonds are present. Statement II: In $\mathrm{CuSO}_4 .5 \mathrm{H}_2 \mathrm{O}$,...
JEE MainChemistryEasy
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QJEE MAIN 2022
If $\cot \alpha=1$ and $\sec \beta=-\frac{5}{3}$, where $\pi<\alpha<\frac{3 \pi}{2}$ and $\frac{\pi}{2}<\beta<\pi$, then the value of $\tan (\alpha+\beta)$ and the quadrant in which $\alpha+\beta$ lies, respectively...
JEE MainMathematicsEasy
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QJEE MAIN 2022
Let a circle C : $(x-h)^2+(y-k)^2=r^2, k>0$,, touch the x-axis at (1, 0). If the line x + y = 0 intersects the circle C...
JEE MainMathematicsMedium
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QJEE MAIN 2022
If $z^2+z+1=0, z \in \mathbb{C}$, then $\left|\sum_{n=1}^{15}\left(z^n+(-1)^n \frac{1}{z^n}\right)^2\right|$ is equal to
JEE MainMathematicsMedium
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QJEE MAIN 2022
Negation of the Boolean statement $(p \vee q) \Rightarrow((\sim r) \vee p)$ is equivalent to :
JEE MainMathematicsEasy
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QJEE MAIN 2022
Let $p$ and $q$ be two real numbers such that $p+q=3$ and $p^4+q^4=369$. Then $\left(\frac{1}{p}+\frac{1}{q}\right)^{-2}$ is equal to . $\_\_\_\_$
JEE MainMathematicsMedium
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QJEE MAIN 2022
Among the given oxides of nitrogen; $\mathrm{N}_2 \mathrm{O}, \mathrm{N}_2 \mathrm{O}_3, \mathrm{~N}_2 \mathrm{O}_4$ and $\mathrm{N}_2 \mathrm{O}_5$ the number of compound/(s) having N–N bond is :
JEE MainChemistryEasy
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QJEE MAIN 2022
The area (in sq. units) of the region enclosed between the parabola $y^2$ = 2x and the line x + y = 4 is _____.
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