Laws of Chemical Combination NEET Questions

Physical Chemistry - Some Basic Concepts of Chemistry

Laws of Chemical Combination MCQ Questions


7.
According to the Law of Definite Proportions, water always contains hydrogen and oxygen in what ratio by mass?
A.
1:8
B.
2:1
C.
8:1
D.
4:1
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ANSWER :
A. 1:8
8.
Which law states that when elements combine, they do so in a ratio of small whole numbers?
A.
Law of Conservation of Mass
B.
Law of Multiple Proportions
C.
Avogadro’s Law
D.
Law of Reciprocal Proportions
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ANSWER :
B. Law of Multiple Proportions
9.
Which of the following laws is not related to Dalton's atomic theory?

NEET - 2018

A.
Law of conservation of mass
B.
Law of definite proportions
C.
Law of multiple proportions
D.
Avogadro's law
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ANSWER :
D. Avogadro's law
10.

Which pair of compounds best illustrates the Law of Multiple Proportions?

A.

CO and CO2

B.

H2O and NH3

C.

NaCl and HCl

D.

O2 and O3

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ANSWER :

B. H2O and NH3

11.
The Law of Gaseous Volumes was given by:
A.
Gay-Lussac
B.
John Dalton
C.
Avogadro
D.
Proust
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ANSWER :
A. Gay-Lussac
12.
Which of the following laws supports the concept of atoms as fundamental units of matter?
A.
Law of Conservation of Mass
B.
Law of Definite Proportions
C.
Law of Gaseous Volumes
D.
Avogadro’s Law
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ANSWER :
A. Law of Conservation of Mass