1
MHT CET 2023 12th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which from following formulae is of galena?

A
$$\mathrm{CaSO}_4 \cdot 2 \mathrm{H}_2 \mathrm{O}$$
B
$$\mathrm{PbS}$$
C
$$\mathrm{ZnS}$$
D
$$\mathrm{BaSO}_4$$
2
MHT CET 2023 12th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is the solubility of $$\mathrm{AgCl}_{(\mathrm{s})}$$ if its solubility product is $$1.6 \times 10^{-10}$$ ?

A
$$1.26 \times 10^{-5} \mathrm{M}$$
B
$$1.00 \times 10^{-9} \mathrm{M}$$
C
$$2.6 \times 10^{-5} \mathrm{M}$$
D
$$1.56 \times 10^{-9} \mathrm{M}$$
3
MHT CET 2023 12th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which from following nanoparticle catalysts is used in photocatalysis?

A
$$\mathrm{TiO}_2$$
B
$$\mathrm{Pd}$$
C
$$\mathrm{Pt}$$
D
$$\mathrm{Au}$$
4
MHT CET 2023 12th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A gas absorbs $$150 \mathrm{~J}$$ heat and expands by $$300 \mathrm{~cm}^3$$ against a constant external pressure $$2 \times 10^5 \mathrm{~N} \mathrm{~m}^{-2}$$, What is $$\Delta \mathrm{U}$$ of the system?

A
210 J
B
90 J
C
450 J
D
$$-$$300 J
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