Laws of Chemical Combination NEET Questions

Physical Chemistry - Some Basic Concepts of Chemistry

Laws of Chemical Combination MCQ Questions


1.
Which law states that mass can neither be created nor destroyed in a chemical reaction?
A.
Law of Definite Proportions
B.
Law of Multiple Proportions
C.
Law of Conservation of Mass
D.
Avogadro’s Law
😑 View Answer Rough Work Error
ANSWER :
C. Law of Conservation of Mass
2.
Who proposed the Law of Conservation of Mass?
A.
Antoine Lavoisier
B.
Joseph Proust
C.
John Dalton
D.
Robert Boyle
😑 View Answer Rough Work Error
ANSWER :
A. Antoine Lavoisier
3.
The Law of Definite Proportions is also known as:
A.
Law of Constant Composition
B.
Law of Conservation of Mass
C.
Law of Gaseous Volumes
D.
Dalton’s Atomic Theory
😑 View Answer Rough Work Error
ANSWER :
A. Law of Constant Composition
4.

Which of the following is an example of the Law of Multiple Proportions?

A.

H2O and H2O2

B.

CO and CO2

C.

NaCl and KCl

D.

CH4 and C2H6

😑 View Answer Rough Work Error
ANSWER :

B. CO and CO2

5.
Which scientist formulated the Law of Definite Proportions?
A.
Joseph Proust
B.
John Dalton
C.
Gay-Lussac
D.
Antoine Lavoisier
😑 View Answer Rough Work Error
ANSWER :
A. Joseph Proust
6.
Which of the following combinations illustrates the law of reciprocal proportions?

NEET - 2019

A.
N₂O₃, N₂O₄, N₂O₅
B.
NaCl, NaBr, NaI
C.
CS₂, CO₂, SO₂
D.
PH₃, P₂O₃, P₂O₅
😑 View Answer Rough Work Error
ANSWER :
C. CS₂, CO₂, SO₂