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