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Chemistry - 9 Chapter - 2
Chemical combination and Chemical Equations
Test - 6
1.
John Dalton was _______ scientist?
a) American
b) French
c) English
d) Italian
2.
John Dalton has been regarded as the_________?
a) Founder of Modern Chemistry.
b) Greatest Scientist
c) Father of Modern Chemistry
3.
John Dalton put forward his famous atomic theory about_____ in _____.
a) Structure of matter, 1803
b) Chemical reaction, 1903
c) Structure of matter, 1903
d) Chemical reaction, 1803
4.
The word "Atom" was first called by__________.
a) John Dalton.
b) Antoine Lavoisier.
c) Greek Philosophers.
d) Greek Scientists.
5.
John Dalton told us about different form of elements and compounds and about __________________.
a) Mole and Molar Mass.
b) Calculation based on equations.
c) Reaction taking place between them.
d) Molecular formula.
6.
On what laws John Dalton theory was based?
a) 2. Answers 3 & 4 are correct.
b) 3. Law of conservation of mass.
c) 4. Law of definite proportions
d) 1. Law of multiple proportions.
7.
What are the factors on which Success of a theory depends?
a) 3. How successfully is implemented.
b) 1. All answers are correct
c) 2. How successfully it predicates laws.
d) 4. How successfully it explains existing facts.
8.
What laws were predicted by john Dalton?
a) Las of definite & reciprocal proportions.
b) Laws of multiple and reciprocal proportions.
c) Laws of conservation & definite proportions.
d) Laws of multiple & definite proportions.
9.
What do four laws of chemical combination explain?
a) Gen features of physical change.
b) Molecular Formulas.
c) Expired Formulas
d) Gen features of a chemical change.
10.
Four laws of chemical combination by John Dalton combination were _____true.
a) Not
b) Fully
c) Partly
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