- 1(current)
Q. No.Select the correct statements from the following:
Choose the correct answer from the option given below:
| A. | Atoms of all elements are composed of two fundamental particles. |
| B. | The mass of the electron is \(9.10939 \times 10^{-31} \mathrm{~kg} \text {. }\). |
| C. | All the isotopes of a given element show same chemical properties. |
| D. | Protons and electrons are collectively known as nucleons. |
| E. | Dalton's atomic theory regarded the atom as an ultimate particle of matter. |
| 1. | B, C and E only | 2. | A, B and C only |
| 3. | C, D and E only | 4. | A and E only |
Subtopic: Introduction |
69%
From NCERT
NEET - 2023
Please attempt this question first.
Hints
Please attempt this question first.
The mass of a 2.5 mL solution (the density of the solution is 2.15 g/mL) in the correct significant figures is:
1. 5375 × 10–3 g
2. 5.4 g
3. 5.38 g
4. 53.75 g
1. 5375 × 10–3 g
2. 5.4 g
3. 5.38 g
4. 53.75 g
Subtopic: Introduction |
70%
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
- 1(current)
Q. No.
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