Concentration Terms & Henry's Law NCERT Intext Based MCQs Solutions Chemistry NEET Practice Questions, MCQs, Past Year Questions (PYQs), NCERT Questions, Question Bank, Class 11 and Class 12 Questions, and PDF solved with answers

If 22 g of benzene is dissolved in 122 g of carbon tetrachloride then the mass percentage of benzene (C₆H₆) and carbon tetrachloride (CCl₄) are respectively:
1. 86.32 %; 13.68 %
2. 13.68 %; 86.32 %
3. 84.72 %; 15.28 %
4. 15.28 %; 84.72 %

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The mole fraction of benzene in solution containing 30% by mass in carbon tetrachloride is:

1. 0.528
2. 0.618
3. 0.458
4. 0.338

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The molarity of 30 g Co(NO₃)₂. 6H₂O in 4.3 L of solution is:

1. 0.053 M
2. 0.043 M
3. 0.023 M
4. 0.063 M

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What mass of urea (NH₂CONH₂) is needed to prepare 2.5 kg of a 0.25 molal solution?

1.	39 g	2.	37 g
3.	41 g	4.	35 g

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Calculate the molarity of the KI solution, provided its density is 1.202 g mL^-1 and it consists of a 20% (mass/mass) concentration.

1. 1.25 M
2. 1.95 M
3. 1.45 M
4. 2.15 M

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The solubility of H₂S in water at STP is 0.195 m, The value of Henry’s law constant will be:

1.	274 atm	2.	285 atm
3.	295 atm	4.	278 atm

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Henry’s law constant for CO₂ in water is 1.67 × 10⁸ Pa at 298 K. The quantity of CO₂ in 500 mL of soda water when packed under 2.5 atm CO₂ pressure at 298 K is:

1.	1.24 g	2.	1.45 g
3.	1.65 g	4.	1.85 g

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The molarity of solution obtained when 30 mL of 0.5 M H₂SO₄ solution diluted to 500 mL is:

1.	0.03 M	2.	0.0003 M
3.	3.0 M	4.	30 M

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The density of 20% (mass/mass) aqueous KI is 1.202 g mL^–1. The molality of KI solution is:

1.	1.21 m	2.	1.91 m
3.	1.71 m	4.	1.51 m

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The density of 20% (mass/mass) aqueous KI is 1.202 g mL^–1. The mole fraction of KI in the solution is:

1. 0.0223
2. 0.0343
3. 0.0163
4. 0.0263

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