Q. No.For the reaction:
\(Cl_2 + KOH \rightarrow KCl + KClO + H_2O\)
1 mole of \(Cl_2\) passed into 2 litre, 2M solution of KOH. Determine the molarity of \(Cl^-, ClO^-\) and \(OH^-\) respectively.
1. 1 M, 0.5 M, 0.5 M
2. 0.5 M, 0.5 M, 1 M
3. 1 M, 1 M, 0.5 M
4. 0.5 M, 1 M, 0.5 M
\(Cl_2 + KOH \rightarrow KCl + KClO + H_2O\)
1 mole of \(Cl_2\) passed into 2 litre, 2M solution of KOH. Determine the molarity of \(Cl^-, ClO^-\) and \(OH^-\) respectively.
1. 1 M, 0.5 M, 0.5 M
2. 0.5 M, 0.5 M, 1 M
3. 1 M, 1 M, 0.5 M
4. 0.5 M, 1 M, 0.5 M
Subtopic: Moles, Atoms & Electrons | Concentration Based Problem | Equation Based Problem |
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Level 2: 60%+
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100 g of 98% by weight \(H_2SO_4\) is mixed with 100 gm of 49% by weight \(H_2SO_4 .\) Determine the mole fraction of \(H_2SO_4\) in the final solution:
1. 0.9
2. 0.1
3. 0.67
4. 0.33
1. 0.9
2. 0.1
3. 0.67
4. 0.33
Subtopic: Moles, Atoms & Electrons | Concentration Based Problem |
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Level 3: 35%-60%
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For Balanced chemical reaction:
Which of the following is correct?
| \(2 \mathrm{Al}_{(\mathrm{s})}+6 \mathrm{HCl}_{\mathrm{aq}} \rightarrow 2 \mathrm{AlCl}_3+3 \mathrm{H}_{2(\mathrm{~g})}\) |
Which of the following is correct?
| 1. | With excess of Al, volume of \(H_2\) gas produced per mole of HCl reacted will be 33.6 L at 1 atm & 273 K. |
| 2. | With excess of Al, volume of \(H_2\) gas produced per mole of HCl reacted will be 11.2 L at 1 atm & 273 K. |
| 3. | With excess of HCI, moles of \(AlCl_3\) produced per mole of AI reacted are 2. |
| 4. | At given P and T, 12 L HCI produced 6 L \(H_2 \) gas. |
Subtopic: Moles, Atoms & Electrons | Concentration Based Problem |
75%
Level 2: 60%+
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Which of the following mixtures of 1M base and 1M acid leads to the largest increase in temperature?
1. 30 mL HCl and 30 mL NaOH
2. 30 mL CH3COOH and 30 mL NaOH
3. 50 mL HCl and 20 mL NaOH
4. 45 mL CH3COOH and 25 mL NaOH
1. 30 mL HCl and 30 mL NaOH
2. 30 mL CH3COOH and 30 mL NaOH
3. 50 mL HCl and 20 mL NaOH
4. 45 mL CH3COOH and 25 mL NaOH
Subtopic: Moles, Atoms & Electrons | Concentration Based Problem | Millimole/Equivalent Concept |
67%
Level 2: 60%+
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We are provided with the graph depicting the relationship between pressure (P) and temperature (T).
Choose the correct option:
1. \(\rho_1>\rho_2>\rho_3 \)
2. \(\rho_1<\rho_2<\rho_3 \)
3. \(\rho_1=\rho_2=\rho_3 \)
4. \(\rho_2>\rho_1>\rho_3\)
Choose the correct option:
1. \(\rho_1>\rho_2>\rho_3 \)
2. \(\rho_1<\rho_2<\rho_3 \)
3. \(\rho_1=\rho_2=\rho_3 \)
4. \(\rho_2>\rho_1>\rho_3\)
Subtopic: Concentration Based Problem |
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Calculate the molarity of NaCl solution, if 5.85 gm of NaCl is dissolved in 500 ml of solution.
1. 0.1 M
2. 0.2 M
3. 0.32 M
4. 0.4 M
1. 0.1 M
2. 0.2 M
3. 0.32 M
4. 0.4 M
Subtopic: Concentration Based Problem |
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Level 1: 80%+
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x g of ethylamine on reaction with NaNO2 and HCl, produces 2.24 L of N2(g) at NTP. The value of 2x will be:
1. 8
2. 6
3. 0
4. 9
1. 8
2. 6
3. 0
4. 9
Subtopic: Concentration Based Problem |
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Molality of aqueous solution of urea is 4.44 m. Then mole fraction of urea is \(x \times 10^{-3}.\) The value of \(\mathrm{x}\) is:
1. 67
2. 74
3. 93
4. 87
1. 67
2. 74
3. 93
4. 87
Subtopic: Concentration Based Problem |
75%
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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 |
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Level 1: 80%+
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Calculate the number of moles of precipitate product formed when 72 mol of PbCl₂ reacts completely with 50 mol of (NH₄)₂SO₄.
1. 69
2. 50
3. 90
4. 89
1. 69
2. 50
3. 90
4. 89
Subtopic: Concentration Based Problem |
83%
Level 1: 80%+
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