Q. No.Match the following:
| COLUMN I | COLUMN II | ||
| A. | 88 g of CO2 | 1. | 0.25 mol |
| B. | 6.022×1023 molecules of H2O | 2. | 2 mol |
| C. | 5.6 L of O2 at STP | 3. | 3 mol |
| D. | 96 g of O2 | 4. | 1 mol |
| A | B | C | D | |
| 1. | 2 | 4 | 1 | 3 |
| 2. | 1 | 2 | 3 | 4 |
| 3. | 1 | 4 | 3 | 2 |
| 4. | 4 | 1 | 3 | 2 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology4.4 g of an unknown gas occupies 2.24 litres of volume at NTP. The gas may be:
| 1. | Carbon dioxide | 2. | Carbon monoxide |
| 3. | Oxygen | 4. | Sulphur dioxide |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe number of moles present in 2.5 litres of 0.2 M are:
1. 0.25
2. 0.5
3. 0.75
4. 0.2
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. 4 g He
2. 46 g Na
3. 0.40 g Ca
4. 12 g He
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe weight of 1x1023 molecules of CuSO4.5H2O is:
1. 34.42 g
2. 41.42 g
3. 54.44 g
4. 68.94 g
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology| Assertion (A): | The number of molecules in 2 moles of NH3 is equal to the number of molecules in 4 moles of CH4. |
| Reason (R): | Both are chemically similar species. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe mass of carbon present in 0.5 mole of K4[Fe(CN)6] is:
| 1. | 1.8 g | 2. | 18 g |
| 3. | 3.6 g | 4. | 36 g |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe formula of an acid is The mass of 0.0242 moles of the acid is 1.657 g.
The atomic weight of X is:
| 1. | 35.5 | 2. | 28.1 |
| 3. | 128 | 4. | 19.0 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe amount of copper (in grams) that can be obtained from 100 g of copper sulphate (CuSO4) is:
| 1. | 54.00 | 2. | 39.81 |
| 3. | 63.50 | 4. | 159.50 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe haemoglobin from the red blood corpuscles contains approximately 0.33% iron
by mass. The molar mass of haemoglobin is 67,200. The number of iron atoms in each molecule of haemoglobin is :
(atomic mass of iron=56):
| 1. | 2 |
| 2. | 3 |
| 3. | 4 |
| 4. | 5 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology
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