Correct option is B
Question
Calculate the number of particles in the following: 46 g of Na atoms.
A.
46
B.
C.
D.
Similar Questions
- 1)Which of the following has a variable composition?
- 2)For determining atomic mass, which of the following is selected as a standard reference?
- 3)Who invented the analytical balance used in laboratories?
1 Mendeleev
2 John Dalton
3 Lavoisier
4 Galileo - 4)Number of moles in 128 gm of SO2 will be
- 5)
What is the process by which a gas is converted into a solid?
- 6)
Which law is shown by fixed 1:8 mass ratio in water formation?
- 7)
Given below are two statements:
Statement I: In preference to a nitrogen-oxygen mixture (present in air), a helium-oxygen mixture is used by divers in deep sea because helium is less soluble in blood than nitrogen at high pressure under the sea.
Statement II: In preference to a nitrogen-oxygen mixture (present in air), a helium-oxygen mixture is used by divers in deep sea because it can readily mix with oxygen than nitrogen.
In the light of the above statements, choose the correct answer from the options given below: - 8)According to Bohr’s model, what is the significance of an electron transition from a higher energy orbit to a lower energy orbit?
- 9)
Which of the following is not a mixture?
- 10)
The boiling point of water in Celsius is-
Access ‘RRB JE Electrical Engineering’ Mock Tests with
- 60000+ Mocks and Previous Year Papers
- Unlimited Re-Attempts
- Personalised Report Card
- 500% Refund on Final Selection
- Largest Community
532k+ students have already unlocked exclusive benefits with Test Prime!
Access ‘RRB JE Electrical Engineering’ Mock Tests with
- 60000+ Mocks and Previous Year Papers
- Unlimited Re-Attempts
- Personalised Report Card
- 500% Refund on Final Selection
- Largest Community
532k+ students have already unlocked exclusive benefits with Test Prime!
Similar Questions
- 1)Which of the following has a variable composition?
- 2)For determining atomic mass, which of the following is selected as a standard reference?
- 3)Who invented the analytical balance used in laboratories?
1 Mendeleev
2 John Dalton
3 Lavoisier
4 Galileo - 4)Number of moles in 128 gm of SO2 will be
- 5)
What is the process by which a gas is converted into a solid?
- 6)
Which law is shown by fixed 1:8 mass ratio in water formation?
- 7)
Given below are two statements:
Statement I: In preference to a nitrogen-oxygen mixture (present in air), a helium-oxygen mixture is used by divers in deep sea because helium is less soluble in blood than nitrogen at high pressure under the sea.
Statement II: In preference to a nitrogen-oxygen mixture (present in air), a helium-oxygen mixture is used by divers in deep sea because it can readily mix with oxygen than nitrogen.
In the light of the above statements, choose the correct answer from the options given below: - 8)According to Bohr’s model, what is the significance of an electron transition from a higher energy orbit to a lower energy orbit?
- 9)
Which of the following is not a mixture?
- 10)
The boiling point of water in Celsius is-
