1.
Who proposed the Law of Conservation of Mass?
2.
The law that states “equal volumes of gases under same conditions contain equal molecules” is:
3.
Which law is basis for balanced chemical equations?
4.
Which form of matter has variable mass composition?
5.
A pure chemical compound always contains elements:
6.
Which statement is correct regarding a pure compound?
7.
Berzelius Hypothesis deals with:
8.
Which one is an example of a pure compound?
9.
The Law of Conservation of Mass was proposed in which year?
10.
Noble gases exist as:
11.
Which of the following exists as a triatomic molecule?
12.
Which law is applicable only to pure compounds?
13.
Which part of matter contains only one type of atoms?
14.
The smallest particle of an element that takes part in a chemical reaction is:
15.
Which of the following always has fixed chemical formula?
16.
Which of the following is used as evidence of fixed composition?
17.
Avogadro’s Law states that equal volumes of gases contain:
18.
Who proposed the Law of Constant Composition?
19.
Why do noble gases not form molecules easily?
20.
Avogadro proposed his hypothesis in which year?
21.
Dalton’s atomic theory is supported by which law?
22.
Which scientist verified the Law of Constant Composition?
23.
How many atoms are present in one molecule of CO₂?
24.
A molecule is defined as:
25.
Water always contains hydrogen and oxygen in:
26.
Which among the following is NOT a compound?
27.
Who introduced the term molecule?
28.
In a chemical reaction, atoms:
29.
Law of Constant Composition is also known as:
30.
Who is called the Father of Modern Chemistry?
31.
The chemical formula of ozone indicates that it contains:
32.
Avogadro’s Law applies to:
33.
Which is NOT a part of Law of Conservation of Mass?
34.
Which statement supports Avogadro’s hypothesis?
35.
Which statement best describes a molecule?
36.
Which of the following proves that atoms are not created or destroyed in reactions?
37.
Which of the following is a diatomic molecule?
38.
Which of the following contains two atoms?
39.
Atoms of non-reactive elements are called:
40.
Which is an example of a mixture with variable composition?
41.
According to the Law of Conservation of Mass:
42.
Berzelius is known for:
43.
Which of the following is a mixture?
44.
In which state does Avogadro’s law apply?
45.
Which of the following best supports Berzelius’ contribution?
