1
MHT CET 2021 22th September Morning Shift
MCQ (Single Correct Answer)
+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 $$=\frac{\text { Sum of formula weight of all reactants }}{\text { Formula weight of desired product }} \times 100$$
2
MHT CET 2021 21th September Morning Shift
MCQ (Single Correct Answer)
+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
3
MHT CET 2021 20th September Evening Shift
MCQ (Single Correct Answer)
+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
4
MHT CET 2021 20th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

What amount of oxygen is used at S.T.P. to obtain 9 g water from sufficient amount of hydrogen gas?

A
5.6 dm$$^3$$
B
22.4 dm$$^3$$
C
16.8 dm$$^3$$
D
11.2 dm$$^3$$
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