MHT CET 2025 25th April Evening Shift | MHT CET Year Wise Previous Years Questions

MHT CET 2025 25th April Evening Shift

MCQ (Single Correct Answer)

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Find the EAN of Zn in $\left[\mathrm{Zn}\left(\mathrm{NH}_3\right)_4\right]^{2+}$ ?

MHT CET 2025 25th April Evening Shift

MCQ (Single Correct Answer)

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If standard reduction potential $\left(\mathrm{E}^{\circ}\right)$ of $\left(\mathrm{Mg}_{(\mathrm{aq})}^{+2} \mid \mathrm{Mg}_{(\mathrm{s})}\right),\left(\mathrm{Ag}_{(\mathrm{aq})}^{+} \mid \mathrm{Ag}_{(\mathrm{s})}\right),\left(\mathrm{Zn}^{+2}{ }_{(\mathrm{aq})} \mid \mathrm{Zn}_{(\mathrm{s})}\right)$ and $\left(\mathrm{Cu}^{+2}{ }_{(\text {aq })} \mid \mathrm{Cu}_{(\text {s })}\right)$ are $-2.37 \mathrm{~V},+0.79 \mathrm{~V},-0.76 \mathrm{~V}$ and +0.34 V respectively. Which of the following reaction is spontaneous?

$\quad \mathrm{Zn}_{(\mathrm{s})}+\mathrm{Mg}_{(\mathrm{aq})}^{+2} \longrightarrow \mathrm{Zn}_{(\mathrm{aq})}^{+2}+\mathrm{Mg}_{(\mathrm{s})}$

$\quad 2 \mathrm{Ag}_{(\mathrm{s})}+\mathrm{Zn}_{(\mathrm{aq})}^{+2} \longrightarrow 2 \mathrm{Ag}_{(\mathrm{aq})}^{+}+\mathrm{Zn}_{(\mathrm{s})}$

$\mathrm{Zn}_{(\mathrm{s})}+\mathrm{Cu}_{(\mathrm{aq})}^{+2} \longrightarrow \mathrm{Zn}_{(\mathrm{aq})}^{+2}+\mathrm{Cu}_{(\mathrm{s})}$

$\quad \mathrm{Cu}_{(\mathrm{s})}+\mathrm{Mg}_{(\mathrm{aq})}^{+2} \longrightarrow \mathrm{Cu}_{(\mathrm{aq})}^{+2}+\mathrm{Mg}_{(\mathrm{s})}$

MHT CET 2025 25th April Evening Shift

MCQ (Single Correct Answer)

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Which from following statements is NOT true for phenol?

Phenols are polar molecules.

Pure phenol is odourless, nontoxic, high melting solid.

Boiling points of phenols increases with increase in molecular mass.

Phenols show appreciable solubility in water.