MHT CET 2023 13th May Morning Shift | MHT CET Year Wise Previous Years Questions

MHT CET 2023 13th May Morning Shift

MCQ (Single Correct Answer)

-0

Find the radius of fourth orbit of hydrogen atom if its radius of first orbit is $$\mathrm{R}$$ pm.

R pm

4 R pm

9 R pm

16 R pm

MHT CET 2023 13th May Morning Shift

MCQ (Single Correct Answer)

-0

Which noble gas element from following exhibits highest number of different oxidation states?

MHT CET 2023 13th May Morning Shift

MCQ (Single Correct Answer)

-0

Which among the following is a pair of monocarboxylic acids?

Malonic acid and propionic acid

Valeric acid and succinic acid

Acetic acid and adipic acid

Butyric acid and caproic acid

MHT CET 2023 13th May Morning Shift

MCQ (Single Correct Answer)

-0

Identify the overall oxidation reaction that occurs in lead storage cell during discharge.

$$\mathrm{Pb}_{\text {(aq) }}^{++}+\mathrm{SO}_{4(\text { aq) }}^{--} \longrightarrow \mathrm{PbSO}_{4(\mathrm{s})}$$

$$\mathrm{PbSO}_{4(\mathrm{~s})}+2 \mathrm{H}_2 \mathrm{O}_{(f)} \longrightarrow \mathrm{PbO}_{2(\mathrm{~B})} +4 \mathrm{H}_{(\mathrm{aq})}^{+} +\mathrm{SO}_{4(\mathrm{aq})}^{--}+2 \mathrm{e}^{-}$$

$$\mathrm{Pb}_{(\mathrm{s})}+\mathrm{SO}_{4(\text { aq })}^{--} \longrightarrow \mathrm{PbSO}_{4(\mathrm{s})}+2 \mathrm{e}^{-}$$

$$\mathrm{PbSO}_{4(\mathrm{~s})}+2 \mathrm{e}^{-} \longrightarrow \mathrm{Pb}_{(\mathrm{s})}+\mathrm{SO}_{4(\mathrm{aq})}^{--}$$

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