Indian army has published the notification for SSC Tech 56 men and SSC Tech 27 women for the course commencing at OTA Chennai from April 2021
Nuclides which have same mass number are called
Isotones
Isobars
Isotopes
Isomers
Which of the following is a property of an isobar?
They have same atomic number
They have same chemical property
They have same mass number
More than one of the above
With symbols having their usual meanings, which one among the following is used as the standard for defining atomic mass unit?
C-12
H-1
N-14
None of the above
Which among the following elements has maximum atomic radius ?
Sodium
Potassium
Carbon
Nitrogen
Which of the following elements has the maximum atomic radius?
P
Cl
Na
S
What is the molecular weight of heavy water?
16
18
22
20
The electron was discovered by________.
J. J. Thomson
John Dalton
James Chadwick
Rutherford
Which of the following value is the Atomic Mass of Calcium ?
32 µ
40 µ
35.5 µ
14 µ
______ states that for a solution of volatile liquids, the partial vapour pressure of each component of the solution is directly proportional to its mole fraction present in solution.
Boyle’s law
Dalton’s law
Faraday’s law
Raoult’s law
Helium has ______ atomicity.
Tetra-atomic
Diatomic
Poly-atomic
Monoatomic
