Equilibrium & Solutions — NEET Chemistry practice

Question 1

A plot of ln K_eq (y-axis) vs 1/T (x-axis) for a reaction is a straight line with a positive slope. The reaction must be:

Accepted Answer

Exothermic

Answer

Endothermic

Answer

One with negligible ΔH

Answer

Spontaneous

Question 2

At constant temperature, Kp for N₂O₄ ⇌ 2NO₂ is expressed as Kp = 4x²P/(1 − x²), where P is pressure and x is the extent of decomposition. Which statement is true?

Accepted Answer

Kp remains constant with change in P and x

Answer

Kp increases with increase in P

Answer

Kp increases with increase in x

Answer

Kp increases with decrease in x

Question 3

Match the type of solution (Column I) with its description (Column II), with respect to a red blood cell. Column I: Isotonic solution; Hypertonic solution; Hypotonic solution Column II: Salt concentration less than 0.9% (m/V); water flows into the cell and it swells; Salt concentration more than 0.9% (m/V) NaCl; water flows out of the cell and it shrinks; No osmosis occurs across the semipermeable membrane

Accepted Answer

A→R, B→Q, C→P

Answer

A→R, B→P, C→Q

Answer

A→P, B→Q, C→R

Answer

A→Q, B→P, C→R

Question 4

Four curves show how Henry's law constant K_H could vary with temperature T: I rises steadily, II falls steadily, III stays constant, IV rises then falls. The correct representation is:

Accepted Answer

I

Answer

IV

Answer

III

Answer

II

Question 5

Match the ionic-equilibrium terms (Column I) with Column II. Column I: Strong electrolytes; Weak electrolytes; Electrolyte; Ionic equilibrium Column II: State where concentrations of ions and unionised molecules stay constant; Ionise almost completely in solution; Partially dissociate into ions in solution; Substance that conducts electricity in solution due to ions

Accepted Answer

A→Q, B→R, C→S, D→P

Answer

A→Q, B→S, C→P, D→R

Answer

A→R, B→P, C→Q, D→S

Answer

A→S, B→R, C→P, D→Q

Equilibrium & Solutions: NEET practice questions

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