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1
MHT CET 2024 11th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following pair of compounds cannot demonstrate law of multiple proportion?

A
$\mathrm{NO}, \mathrm{NO}_2$
B
$\mathrm{CO}, \mathrm{CO}_2$
C
$\mathrm{H}_2 \mathrm{O}, \mathrm{H}_2 \mathrm{O}_2$
D
$\mathrm{Na}_2 \mathrm{S}, \mathrm{NaF}$
2
MHT CET 2024 11th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

What is the percentage atom economy when formula weight of product obtained is 70 u and the sum of formula weight of reactant is 140 u ?

A
$30 \%$
B
$35 \%$
C
$50 \%$
D
$75 \%$
3
MHT CET 2024 10th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which law is illustrated by compounds $\mathrm{H}_2 \mathrm{O}$ and $\mathrm{H}_2 \mathrm{O}_2$ formed from two different elements, H and O ?

A
Law of Constant proportion.
B
Law of Conservation of mass.
C
Law of Multiple proportion.
D
Avogadro's law.
4
MHT CET 2024 10th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

What is the volume of oxygen required for complete combustion of 0.25 mole of methane at S.T.P.?

A
$22.4 \mathrm{~dm}^3$
B
$5.6 \mathrm{~dm}^3$
C
$11.2 \mathrm{~dm}^3$
D
$7.46 \mathrm{~dm}^3$
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