1
MHT CET 2021 23rd September Evening Shift
+1
-0

What is the SI unit of density?

A
kg dm$$^3$$
B
kg m$$^{-3}$$
C
kg m$$^3$$
D
kg dm$$^{-3}$$
2
MHT CET 2021 22th September Evening Shift
+1
-0

How many moles of urea are present in 5.4 g ? (Molar mass = 60)

A
2.9
B
0.09
C
1.2
D
2.4
3
MHT CET 2021 22th September Morning Shift
+1
-0

What is the mass of potassium chloride produced when $$12.25 \mathrm{~g}$$ potassium chlorate undergo decomposition? (At mass: $$\mathrm{K}=39, \mathrm{Cl}=35.5, \mathrm{O}=16$$ )

A
$$16.0 \mathrm{~g}$$
B
$$14.9 \mathrm{~g}$$
C
$$7.45 \mathrm{~g}$$
D
$$4.25 \mathrm{~g}$$
4
MHT CET 2021 22th September Morning Shift
+1
-0

Which from following formulae is a correct formula to determine percent atom economy?

A
$$\%$$ Atom economy $$=$$ Formula weight of product $$\times 100$$
B
$$\%$$ Atom economy $$=$$ Sum of formula weight of all reactants $$\times 100$$
C
$$\%$$ Atom economy $$=\frac{\text { Formula weight of desired product }}{\text { Sum of formula }} \times 100$$
D
$$\%$$ Atom economy $$=\frac{\text { Sum of formula weight of all reactants }}{\text { Formula weight of desired product }} \times 100$$
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