Rutherford’s ‘alpha (α) particles scattering experiment’ resulted in the discovery of
Anonymous Quiz
23%
Electron
53%
Nucleus in atom
17%
Proton
7%
Nucleus in neutron
👍1
The ion of an element has 3 positive charges. Mass number of the atom is 27 and the number of neutrons is 14. What is the number of electrons in the ion?
Anonymous Quiz
35%
13
41%
10
17%
14
8%
6
How many electrons are present in M-shell of an element with atomic number 20?
Anonymous Quiz
9%
5
63%
8
18%
12
10%
20
Which of the following would weigh the highest?
Anonymous Quiz
18%
2 mol of co2
47%
2 mol of caco3
30%
10 mol of h20
4%
None
Which of the following has maximum number of atoms?
Anonymous Quiz
32%
18 g of co4
31%
18 g of co3
28%
18 g of co2
9%
18 g of co
The relative molecular mass of Na2S2O3.5H2O is
Anonymous Quiz
27%
250 amu
31%
250g
32%
248 amu
10%
248 g
What mass of carbon dioxide (CO2) will contain 3.011 × 1023 molecules?
Anonymous Quiz
19%
11.0g
39%
22.0g
30%
33.0g
12%
44.0g
Forwarded from Shubham Jha - Class 11 & 12 (Shubham Jha)
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A form of matter has no fixed shape but it has a fixed volume. An example of this form of matter is
Anonymous Quiz
16%
Krypton
35%
Kerosene
28%
Carbon monoxide
22%
Oil
Which of the following cannot be considered a form of matter
Anonymous Quiz
16%
Atom
19%
Water
50%
Humidity
15%
Electron
The proteins and lipids, essential for building the cell membrane, are manufactured by:
Anonymous Quiz
46%
Endoplasmic recticulum
25%
Golgi apperatus
22%
Mitochondria
8%
Lysosome
A person met with an accident in which two long bones of his hand were dislocated. Which among the following may be the possible reason for this?
Anonymous Quiz
24%
Tendon break
44%
Ligament break
29%
Break of skeletal muscle
4%
None
Epithelial tissue always has an exposed outer surface and an inner surface anchored to connective tissue by a thin, non- cellular structure called the
Anonymous Quiz
21%
Non stratified layer
44%
Stratified layer
28%
Basement membrane
7%
Fibroblasts