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JEE MAIN 2024
08-04-24 S1
Question
Three balls are drawn at random from a bag containing 5 blue and 4 yellow balls. Let the random variables X and Y respectively denote the number of blue and Yellow balls. If $\bar{X}$ and $\bar{Y}$ are the means of $X$ and $Y$ respectively, then $7 \bar{X}+4 \bar{Y}$ is equal to
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Showing 18 questions
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QJEE ADVANCE 20062006
Match the extraction processes listed in Column I with metals listed in Column II:
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We have taken a saturated solution of $\mathrm{AgBr} . \mathrm{K}_{\text {sp }}$ of AgBr is $12 \times 10^{-14}$. If $10^{-7}$...
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For the reaction, $2 \mathrm{CO}+\mathrm{O}_2 \longrightarrow 2 \mathrm{CO}_2 ; \Delta \mathrm{H}=-560 \mathrm{~kJ}$. Two moles of CO and one mole of...
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Ammonia is always is added in this reaction. Which of the following must be incorrect?
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QJEE ADVANCE 20062006
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Which of the following option is correct?
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QJEE ADVANCE 20062006
The IUPAC name of $A$ and $B$ are
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