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Chapter 7: Atoms and Molecules
- Online Test
Chapter 7: Atoms and Molecules
TEST : 1
TN State Board
TN 10th Standard
Science
Chapter 7: Atoms and Molecules
Prepare / Learn
Q1.
Which of the following has the smallest mass?
A.
6.023 × 10
23
atoms of He
B.
1 atom of He
C.
2 g of He
D.
1 mole atoms of He
View Solution
Add Work Space
Answer :
Option B
Explaination / Solution:
No Explaination.
TN State Board
TN 10th Standard
Science
Chapter 7: Atoms and Molecules
Prepare / Learn
Q2.
Which of the following is a triatomic molecule?
A.
Glucose
B.
Helium
C.
Carbon dioxide
D.
Hydrogen
View Solution
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Answer :
Option C
Explaination / Solution:
No Explaination.
TN State Board
TN 10th Standard
Science
Chapter 7: Atoms and Molecules
Prepare / Learn
Q3.
The volume occupied by 4.4 g of CO
2
at S.T.P
A.
22.4 litre
B.
2.24 litre
C.
0.24 litre
D.
0.1 litre
View Solution
Add Work Space
Answer :
Option B
Explaination / Solution:
No Explaination.
TN State Board
TN 10th Standard
Science
Chapter 7: Atoms and Molecules
Prepare / Learn
Q4.
Mass of 1 mole of Nitrogen atom is
A.
28 amu
B.
14 amu
C.
28 g
D.
14 g
View Solution
Add Work Space
Answer :
Option C
Explaination / Solution:
No Explaination.
TN State Board
TN 10th Standard
Science
Chapter 7: Atoms and Molecules
Prepare / Learn
Q5.
Which of the following represents 1 amu?
A.
Mass of a C – 12 atom
B.
Mass of a hydrogen atom
C.
1/12th of the mass of a C – 12 atom
D.
Mass of O – 16 atom
View Solution
Add Work Space
Answer :
Option C
Explaination / Solution:
No Explaination.
TN State Board
TN 10th Standard
Science
Chapter 7: Atoms and Molecules
Prepare / Learn
Q6.
Which of the following statement is incorrect?
A.
One gram of C – 12 contains Avogadro’s number of atoms.
B.
One mole of oxygen gas contains Avogadro’s number of molecules.
C.
One mole of hydrogen gas contains Avogadro’s number of atoms.
D.
One mole of electrons stands for 6.023 × 10
23
electrons.
View Solution
Add Work Space
Answer :
Option C
Explaination / Solution:
No Explaination.
TN State Board
TN 10th Standard
Science
Chapter 7: Atoms and Molecules
Prepare / Learn
Q7.
The volume occupied by 1 mole of a diatomic gas at S.T.P is
A.
11.2 litre
B.
5.6 litre
C.
22.4 litre
D.
44.8 litre
View Solution
Add Work Space
Answer :
Option C
Explaination / Solution:
No Explaination.
TN State Board
TN 10th Standard
Science
Chapter 7: Atoms and Molecules
Prepare / Learn
Q8.
In the nucleus of
20
Ca
40
, there are
A.
20 protons and 40 neutrons
B.
20 protons and 20 neutrons
C.
20 protons and 40 electrons
D.
40 protons and 20 electrons
View Solution
Add Work Space
Answer :
Option B
Explaination / Solution:
No Explaination.
TN State Board
TN 10th Standard
Science
Chapter 7: Atoms and Molecules
Prepare / Learn
Q9.
The gram molecular mass of oxygen molecule is
A.
16 g
B.
18 g
C.
32 g
D.
17 g
View Solution
Add Work Space
Answer :
Option C
Explaination / Solution:
No Explaination.
TN State Board
TN 10th Standard
Science
Chapter 7: Atoms and Molecules
Prepare / Learn
Q10.
1 mole of any substance contains ____ molecules.
A.
6.023 × 10
23
B.
6.023 × 10
-23
C.
3.0115 × 10
23
D.
12.046 × 10
23
View Solution
Add Work Space
Answer :
Option A
Explaination / Solution:
No Explaination.
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Chapter 7: Atoms and Molecules
TEST : 1
Chapter 7: Atoms and Molecules
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TN State Board : TN 10th Standard (Science)
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