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A mixture of 2.3 g formic acid and 4.5 g oxalic acid is treated with conc. . The evolved gaseous mixture is passed through KOH pellets.
Weight (in g) of the remaining product at STP will be:
1. 1.4
2. 3.0
3. 2.8
4. 4.4
Subtopic: Â Equation Based Problem |
 58%
Level 3: 35%-60%
NEET - 2018
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The maximum number of water molecules among the following is:
1. 18 mL of water
2. 0.18 g of water
3. 0.00224 L water vapours at 1 atm and 273 K
4. 10-3 mol of water
1. 18 mL of water
2. 0.18 g of water
3. 0.00224 L water vapours at 1 atm and 273 K
4. 10-3 mol of water
Subtopic: Â Moles, Atoms & Electrons |
 59%
Level 3: 35%-60%
NEET - 2018
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Which of the following is dependent on temperature?
| 1. | Molarity | 2. | Mole fraction |
| 3. | Weight percentage | 4. | Molality |
Subtopic: Â Concentration Based Problem |
 82%
Level 1: 80%+
NEET - 2017
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Suppose that the elements X and Y combine to form two compounds XY2 and X3Y2. If 0.1 mole of XY2 weighs 10 g and 0.05 mole of X3Y2 weighs 9 g, the atomic weight of X and Y, respectively, will be:
| 1. | 40, 30 | 2. | 60, 40 |
| 3. | 20, 30 | 4. | 30, 20 |
Subtopic: Â Equation Based Problem |
 78%
Level 2: 60%+
NEET - 2016
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