1
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
$$4.25 \mathrm{~g}$$
2
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 $$=\frac{\text { Sum of formula weight of all reactants }}{\text { Formula weight of desired product }} \times 100$$
3
MHT CET 2021 21th September Morning Shift
+1
-0

What is the volume (in dm$$^3$$) occupied by 75 g ethane at S.T.P. ?

A
60.0
B
56.0
C
22.4
D
44.8
4
MHT CET 2021 20th September Evening Shift
+1
-0

"Mass can neither be created nor destroyed" is the statement of

A
Gay Lussac Law of gaseous volume
B
Law of definite proportion
C
Law of conservation of mass
D
Law of multiple proportions
EXAM MAP
Medical
NEET