A mixture of 2.3 g formic acid and 4.5 g oxalic acid is treated with conc. H2SO4. 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:  Equation Based Problem |
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The number of water molecules are maximum in which of the following?
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:  Moles, Atoms & Electrons |
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Which of the following parameters is temperature dependent?

1. Molarity
2. Mole fraction
3. Weight percentage
4. Molality

Subtopic:  Concentration Based Problem |
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Suppose the elements X and Y combine to form two compounds XY2 and X3Y2. If 0.1 moles of XYweighs 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:  Equation Based Problem |
To view explanation, please take trial in the course below.
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