IIT JAM Chemistry - MCQ Test 4 - Chemistry MCQ

Solution A contains 7g/L of MgCl2 and Solution B contains 7g/L of NaCl. At room temp, Osmotic pressure of

When a substance is dissolved in solvent, its vapor pressure is decreased. It brings

At a given temperature, total vapor pressure in Torr of a mixture of volatile components A and B is given by

p = 120 – 75X_B

Hence, vapor pressure of pure A and B respectively (in Torr) are:

The equilibrium constant is 6.0 × 10^–4 for the N₂O₂→ 2NO reaction. If the concentration of nitrogen is 0.10 mol/L and concentration of oxygen is 0.20 mol/L at equilibrium. Then the concentration of nitric oxide at equilibrium is:

Some solid NH₄HS is placed in a flask containing 0.5 atm of NH₃, what would be pressure of NH₃ and H₂S when equilibrium is reached:

            NH₄HS_(g)→ NH_3(g) + H₂S_(g),  K_P = 0.11

Ratio of sigma and pi bonds is maximum in           

For the following three reactions (I), (II) and (III) equilibrium constants are given

   (I) CO_(g) + H₂O_(g)→ CO_2(g) + H_2(g); K₁                  
   (II) CH_4(g) + H₂O_(g)→ CO_(g) + 3H_2(g); K₂
  (III) CH_4(g) + 2H₂O_(g)→ CO_2(g) + 4H_2(g); K₃

Which of the following relations is correct:           

XY₂ dissociates as XY_2→ XY_(g) + Y_(g) when the initial pressure of XY₂ is 600 mmHg, the total equilibrium pressure is 800mm Hg. Calculate K for the reaction assuming that the volume of the system remain unchanged:

A 50 mL sample of 0.01M Ba(OH)2 is titrated with 0.01 M HCl. The solution at equivalent point is

Which of the following fluorides is angular:

Based on the following information,

Which of the following chemical species is the strongest reducing agent?

Which molecule has zero bond order:                                                                                 

Which of the following processes involves increasing in bond order:

At room temperature, HCl is a gas while HF is a liquid because:                                      

The bond order and bond type in the C₂ molecule are, respectively:

The major product formed in the following reacting is

Predict the condition A and the structure of the major product B in the following sequence.

The major product B is:

The major product P is:

The conditions A-B, required for the following pericyclic are

The major product P is:

Solubility of BaSO₄ in aqueous solution is 1 × 10^–5 M. Hence, solubility in 0.1 M BaCl₂ is:

pH of a mixture of 1 M benzoic acid (pKa = 4.20) and 1 M sodium benzoate is 4.5. In 300 mL buffer, benzoic acid is:           

58.5 g of NaCl and 180g of glucose were separately dissolved in 1L of water. Identify the correct statements regarding the elevation in boiling point of solution.           

Elevation in boiling point of solution of 13.44g og CuCl₂ in 1 Kg of water will be (M.wt = 134.4, Kb =0.52Kmolal^-1, assume it is a strong electrolyte)           

At 700 K, the equilibrium constant K_p, for the reaction 2 SO₃ (g) ⇌ 2 SO₂ (g) + O₂ Is 1.8 X 10^-3 kPa. What is the numerical value in moles per liter of K_c for the reaction at the same temperature?

0.1 mol of N₂O₄(g) was sealed in a tube under 1 atmospheric pressure at 25^oC. Calculate the no of mole of NO₂(g) present if equilibrium is reached after sometime (Kp = 0.14)