Shubham Jha - Class 9
3.99K subscribers
1.15K photos
91 videos
37 files
2.44K links
Download Telegram
________ is the smallest particle of the element that cannot usually exist independently and retain all its chemical properties.
Anonymous Quiz
17%
Molecules
62%
Atoms
10%
Ion
11%
Electron
Formula of Hydrogen sulphide is
Anonymous Quiz
14%
HS
34%
HS2
38%
H2S
13%
H2S2
Calculate the molecular mass of HNO3
Anonymous Quiz
15%
5
33%
42
22%
46
30%
63
Which of the following is a compound?
Anonymous Quiz
15%
Iron
18%
Sodium
59%
Water
8%
Manganese
Good morning 🤩
Good morning 🤩
At what temperature does solid ice and liquid water co-exist together?
Anonymous Quiz
18%
400 degree C
20%
300 degree C
43%
100 degree C
19%
None of these
Generally on heating, temperature of substances_____________ ?
Anonymous Quiz
73%
Increases
16%
Decreases
9%
Remain the same
2%
None of these
What is the physical state of water at 25° C?
Anonymous Quiz
26%
Solid
13%
Gas
58%
Liquid
3%
None of these
The temperature at which a liquid changes to gas is called?
Anonymous Quiz
19%
Melting point
68%
Boiling point
9%
Freezing point
4%
None of these
Camphor disappears without leaving any residue because of___________?
Anonymous Quiz
47%
Sublimation
23%
Diffusion
13%
Fusion
17%
Evaporation
Good morning 🤩
Out of them which unit is used for the measurement of temperature?
Anonymous Quiz
32%
Degree Celsius
19%
kelvin
47%
Both a and b
2%
None of these
Temperature 25 degree Celsius is equivalent to how many Kelvin?
Anonymous Quiz
23%
289 k
52%
298 k
18%
276 k
7%
234 k
Which of them is the SI unit of temperature?
Anonymous Quiz
59%
Kelvin
8%
Alvin
11%
Newton
22%
Fahrenheit
The symbol of Kelvin is
________?
Anonymous Quiz
82%
K
10%
F
5%
C
2%
None of these
The process of mixing of different substances with each other due to
random motion of their particles is called?
Anonymous Quiz
36%
sublimation
44%
Diffusion
11%
Evaporation
9%
None of these