Have an account?
Skip to Content
Build your own quiz
10 questions
Show Answers
See Preview
- 1. Multiple Choice
Which of the following has the smallest mass?
6.023 × 1023 atoms of He
1 atom of He
2 g of He
1 mole atoms of He
- 2. Multiple Choice
Which of the following is a triatomic
molecule?
Glucose
Helium
Carbon dioxide
Hydrogen
- 3. Multiple Choice
The volume occupied by 4.4 g of CO2 at
S.T.P
22.4 litre
2.24 litre
0.24 litre
0.1 litre
- 4. Multiple Choice
Mass of 1 mole of Nitrogen atom is
28 amu
14 amu
28 g
14 g
- 5. Multiple Choice
Which of the following represents 1 amu?
Mass of a C – 12 atom
Mass of a hydrogen atom
1/12th of the mass of a C – 12 atom
Mass of O – 16 atom
- 6. Multiple Choice
Which of the following statement is
incorrect?
12 gram of C – 12 contains Avogadro’s
number of atoms.
One mole of oxygen gas contains
Avogadro’s number of molecules.
One mole of hydrogen gas contains
Avogadro’s number of atoms.
One mole of electrons stands for
6.023 × 1023 electrons.
- 7. Multiple Choice
The volume occupied by 1 mole of a diatomic
gas at S.T.P is
11.2 litre
5.6 litre
22.4 litre
44.8 litre
- 8. Multiple Choice
In the nucleus of 20Ca40, there are
20 protons and 40 neutrons
20 protons and 20 neutrons
20 protons and 40 electrons
40 protons and 20 electrons
- 9. Multiple Choice
The gram molecular mass of oxygen
molecule is
16 g
18 g
32 g
17 g
- 10. Multiple Choice
1 mole of any substance contains ____
molecules.
6.023 × 1023
6.023 × 10-23
3.0115 × 1023
12.046 × 1023
- Answer choicesTagsAnswer choicesTags