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Q. No.The quantity that changes with temperature:
1. Mole fraction
2. Mass percentage
3. Molarity
4. Molality
Subtopic: Concentration Based Problem |
91%
Level 1: 80%+
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If 84 g of \(\text{NaOH}\) (\(\text{aq}\)) is present in a \(3\) molar solution, find the volume of solution \((\text{in}~\text{mL})\):
1. 800
2. 700
3. 400
4. 500
1. 800
2. 700
3. 400
4. 500
Subtopic: Concentration Based Problem |
89%
Level 1: 80%+
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A sample of 9.3 g of aniline is completely acetylated using excess acetic anhydride. The mass of acetanilide formed is m g. Find the value of 2m.
1. 27
2. 0
3. 17
4. 10
1. 27
2. 0
3. 17
4. 10
Subtopic: Equation Based Problem |
72%
Level 2: 60%+
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Find out molality of \(0.8~\text{M H}_2\text{SO}_4\) solution having density of solution equal to 1.02 gm/ml (Nearest integer)
1. 0
2. 1
3. 6
4. 8
1. 0
2. 1
3. 6
4. 8
Subtopic: Concentration Based Problem |
76%
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50 ml of 0.5 M oxalic acid is completely Neutralised by 25 ml of NaOH solution. Calculate the amount of NaOH (in gm) present in 25 ml of given NaOH solution.
1. 5
2. 2
3. 6
4. 9
1. 5
2. 2
3. 6
4. 9
Subtopic: Concentration Based Problem |
80%
Level 1: 80%+
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If a 250 mL solution of \(\text{CH}_3\text{COONa}\) having molarity 0.35 M is prepared, then calculate the mass of \(\text{CH}_3\text{COONa}\) required in grams?
1. Nine (9)
2. Seven (7)
3. Eight (8)
4. Ten (10)
1. Nine (9)
2. Seven (7)
3. Eight (8)
4. Ten (10)
Subtopic: Concentration Based Problem |
82%
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The number of atoms in a silver plate having an area of 0.05 cm² and a thickness of 0.05 cm is given as X x 1019.
Find the value of X (nearest integer).
(Density of silver = 7.9 g cm⁻³)
1. 88
2. 90
3. 11
4. 14
Subtopic: Concentration Based Problem |
72%
Level 2: 60%+
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A 500 mL solution of \(\mathrm{CuSO}_4\) having density and molarity, \(1.25 \mathrm{~g} \mathrm{~mL}^{-1}\) and \(2 \times 10^{-1} \mathrm{M}\) respectively at \(32^{\circ} \mathrm{C} \text {. }\)
Find the value of \(x\) if the molality is expressed as \(x \times 10^{-2}\) molal? [Nearest Integer]
1. 16
2. 19
3. 25
4. 50
Find the value of \(x\) if the molality is expressed as \(x \times 10^{-2}\) molal? [Nearest Integer]
1. 16
2. 19
3. 25
4. 50
Subtopic: Concentration Based Problem |
71%
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Determine the number of moles of precipitate formed when \(72\) moles of \(\text{PbCl}_2\) reacts with \(50\) moles of \((\text{NH}_4)_2\text{SO}_4\).
1. 69
2. 50
3. 90
4. 89
1. 69
2. 50
3. 90
4. 89
Subtopic: Concentration Based Problem |
82%
Level 1: 80%+
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If C is added to a solution of A and B, then find the mole fraction of C:
| 1. | \(\dfrac{n_C}{n_A+n_B+n_C}\) | 2. | \(\dfrac{n_C}{n_A \cdot n_B+n_C}\) |
| 3. | \(\dfrac{n_C}{n_A \cdot n_C+n_B}\) | 4. | \(\dfrac{n_C}{n_A+n_B}\) |
Subtopic: Concentration Based Problem |
90%
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