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

Which from following series of elements is correctly arranged according to their decreasing order of ionisation enthalpy $$\left(\mathrm{IE}_1\right)$$ ?

$$\mathrm{Zn}>\mathrm{Fe}>\mathrm{Cr}>\mathrm{Sc}$$

$$\mathrm{Cr}>\mathrm{Fe}>\mathrm{Zn}>\mathrm{Sc}$$

$$\mathrm{Sc}>\mathrm{Fe}>\mathrm{Cr}>\mathrm{Zn}$$

$$\mathrm{Cr}>\mathrm{Zn}>\mathrm{Sc}>\mathrm{Fe}$$

MHT CET 2023 13th May Evening Shift

MCQ (Single Correct Answer)

-0

Identify the product formed by the action of $$\mathrm{H}_2(\mathrm{~g})$$ with $$\mathrm{CO}(\mathrm{g})$$ in presence of $$\mathrm{Ni}$$ ?

Methane and water

Methyl alcohol

Acetaldehyde

Ethylene oxide

MHT CET 2023 13th May Evening Shift

MCQ (Single Correct Answer)

-0

Calculate $$E^{\circ}$$ cell for following.

$$\mathrm{Zn}(s)\left|\mathrm{Zn}^{++}(1 \mathrm{M}) \| \mathrm{Pb}^{++}(1 \mathrm{M})\right| \mathrm{Pb}(s)$$ if $$E_{\mathrm{Zn}}^{\circ}=-0.763 \mathrm{~V}$$ and $$E_{\mathrm{Pb}}^{\circ}=-0.126 \mathrm{~V}$$

$$0.637 \mathrm{~V}$$

$$-0.530 \mathrm{~V}$$

$$-0.889 \mathrm{~V}$$

$$0.789 \mathrm{~V}$$

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