Q. No.In sodium sulphate (Na2SO4), the mass percent of sodium, sulfur and oxygen is:
1. 32.4%, 45.05%, 22.6%
2. 22.6%, 45.05%, 32.4%
3. 32.4%, 22.6%, 45.05%
4. 45.05%, 32.4%, 22.6%
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIf the mass of air at sea level is 1034 g cm–2, pressure in pascal will be:
1. 1.01332 × 105 Pa
2. 1.01332 × 106 Pa
3. 1.01332 × 107 Pa
4. 1.01332 × 108 Pa
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe SI unit of mass is:
1. Kilogram (kg)
2. Gram (g)
3. Pascal (Pa)
4. Kilometres (km)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA significant figure is defined as :
| 1. | The total number of digits in a number, including the last digit that represents the uncertainty of the result. |
| 2. | The total number of digits in a number, excluding the last digit, which represents the uncertainty of the result. |
| 3. | The total number of digits in a number including the last digit that represents the certainty of the result. |
| 4. | The total number of last digits that represents the uncertainty of the result. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIf the speed of light is 3.0 × 108 m s–1, then the distance covered by light in 2.00 nanoseconds will be -
1. 0.500 m
2. 0.600 m
3. 0.700 m
4. 0.800 m
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology15.15 pm in the basic unit will be
1. 1.515 × 10–12 m
2. 2.57 × 10–11 m
3. 2.87 × 10–11 m
4. 1.515 × 10–11 m
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe number of significant figures present in the answer of the following calculations [(i), (ii), (iii)] are respectively -
| 1. | 0 . 02856 × 298 . 15 × 0 . 112 / 5785 |
| 2. | 5 × 5.364 |
| 3. | 0.0125 + 0.7864 + 0.0215 |
| 1. | 4, 4, 3 | 2. | 3, 3, 4 |
| 3. | 4, 3, 4 | 4. | 3, 4, 4 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology| List I | List II | ||
| a. | Micro | i. | m |
| b. | Mega | ii. | m |
| c. | Giga | iii. | m |
| d. | Femto | iv. | m |
| a | b | c | d | |
| 1. | i | iv | iii | ii |
| 2. | iii | iv | ii | i |
| 3. | ii | iii | iv | i |
| 4. | i | iii | iv | ii |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe numbers 234,000 and 6.0012 can be represented in scientific notation as:
1.
2. 0.234 and
3.
4. 2.34 and 6.0012
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe number of significant figures in the numbers 5005, 500.0, and 126,000 are, respectively:
| 1. | 2, 4, and 3 | 2. | 4, 1, and 3 |
| 3. | 4, 4, and 6 | 4. | 4, 4, and 3 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology
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