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