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IIT JAM Chemistry - MCQ Test 4 - Chemistry MCQ


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IIT JAM Chemistry - MCQ Test 4 for Chemistry 2024 is part of Mock Test Series for IIT JAM Chemistry preparation. The IIT JAM Chemistry - MCQ Test 4 questions and answers have been prepared according to the Chemistry exam syllabus.The IIT JAM Chemistry - MCQ Test 4 MCQs are made for Chemistry 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for IIT JAM Chemistry - MCQ Test 4 below.
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IIT JAM Chemistry - MCQ Test 4 - Question 1

Relative lowering of vapor pressure produced by dissolving 71.5g of a substance in 1Kg of water  is 0.0073. Molecular weight of substance will be

IIT JAM Chemistry - MCQ Test 4 - Question 2

Which solution will show maximum vapor pressure at 300K

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IIT JAM Chemistry - MCQ Test 4 - Question 3

The relationship been Osmotic pressure at 273K when 10g Glucose (P1), 10g Urea (P2), 10g Sucrose (P3) are dissolved in 250 Ml of water

IIT JAM Chemistry - MCQ Test 4 - Question 4

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

IIT JAM Chemistry - MCQ Test 4 - Question 5

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

Detailed Solution for IIT JAM Chemistry - MCQ Test 4 - Question 5

When a solute dissolves in water, the vapour pressure of solvent decreases and because of this boiling point increases and freezing point decreases.

IIT JAM Chemistry - MCQ Test 4 - Question 6

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

p = 120 – 75XB

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

IIT JAM Chemistry - MCQ Test 4 - Question 7

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:

IIT JAM Chemistry - MCQ Test 4 - Question 8

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)→ NH3(g) + H2S(g),  KP = 0.11

IIT JAM Chemistry - MCQ Test 4 - Question 9

Ratio of sigma and pi bonds is maximum in           

IIT JAM Chemistry - MCQ Test 4 - Question 10

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

   (I) CO(g) + H2O(g)→ CO2(g) + H2(g); K1                  
   (II) CH4(g) + H2O(g)→ CO(g) + 3H2(g); K2
  (III) CH4(g) + 2H2O(g)→ CO2(g) + 4H2(g); K3

Which of the following relations is correct:           

IIT JAM Chemistry - MCQ Test 4 - Question 11

XY2 dissociates as XY2→ 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:

IIT JAM Chemistry - MCQ Test 4 - Question 12

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

IIT JAM Chemistry - MCQ Test 4 - Question 13

Which of the following fluorides is angular:

IIT JAM Chemistry - MCQ Test 4 - Question 14

Based on the following information,

                      

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

IIT JAM Chemistry - MCQ Test 4 - Question 15

Which molecule has zero bond order:                                                                                 

IIT JAM Chemistry - MCQ Test 4 - Question 16

Which of the following processes involves increasing in bond order:

IIT JAM Chemistry - MCQ Test 4 - Question 17

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

IIT JAM Chemistry - MCQ Test 4 - Question 18

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

IIT JAM Chemistry - MCQ Test 4 - Question 19

The major product formed in the following reacting is

IIT JAM Chemistry - MCQ Test 4 - Question 20

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

IIT JAM Chemistry - MCQ Test 4 - Question 21

The major product B is:

IIT JAM Chemistry - MCQ Test 4 - Question 22

The major product P is:

 

IIT JAM Chemistry - MCQ Test 4 - Question 23

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

IIT JAM Chemistry - MCQ Test 4 - Question 24

The major product P is:

IIT JAM Chemistry - MCQ Test 4 - Question 25

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

Detailed Solution for IIT JAM Chemistry - MCQ Test 4 - Question 25

BaSO₄ ---------> Ba²⁺ + SO₄²⁻
According to ICE table
BaSO₄ -----------------> Ba²⁺ + SO₄²⁻
I                     0.1 M    0
C                    +s       +s
E                    s + 0.1    s
therefore we can write
ksp = ( s + 0.01) . s
as the value of ksp is very small as compared to silver ions initial concentration
we can use approximation
s + 0.1 ≈ 0.1
Ksp = 0.01 . s
s = 1 X 10⁻⁵ / 0.1
s = 0.0001 mol/ L
s = 1 X 10⁻4 mol/ L

IIT JAM Chemistry - MCQ Test 4 - Question 26

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:           

IIT JAM Chemistry - MCQ Test 4 - Question 27

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.           

IIT JAM Chemistry - MCQ Test 4 - Question 28

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)           

IIT JAM Chemistry - MCQ Test 4 - Question 29

At 700 K, the equilibrium constant Kp, 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 Kc for the reaction at the same temperature?

IIT JAM Chemistry - MCQ Test 4 - Question 30

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

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