Mole - Volumetry - Redox - Colligative Properties - Chemistry MCQ

Calculate the equivalent Mass of FeS in the following reaction ?

Which of the following acts as an oxidizing agent ?           

Vapor pressure of CHCl₃ and CH₂Cl₂ at 25⁰C are 200 mmHg and 41.5 mmHg resp. Vapor pressure of solution obtained by mixing 25.5g of CHCl₃ and 40g of CH₂Cl₂ at same temp will be? (M.Wt. of CH₂Cl₂ = 85u and M.Wt. of CHCl₃ = 119.5u)

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

Average osmotic pressure of human blood is 7.8 bar at 37⁰C. What is the concentration of an aqueous NaCl solution that could be used in blood stream? [R = 0.0821 JK^-1mol^-1]           

The value of K_f for water is 1.86, calculated from glucose solution. The value of K_f for water, calculated from NaCl solution will be (M.Wt of NaCl = 58.5 g/mol):           

At temp 327⁰C and concentration C, Osmotic pressure of a solution is P. The same solution at concentration C/2 and temp 427⁰C shows Osmotic pressure 2atm. Value of P will be:           

H₂S₂O₈ and H₂SO₅ both have +6 oxidation state of sulfur. This is due to:           

In an experiment, 20g of Vanadium oxide (molar mass 182 g/mol) was reduced by excess of Zinc dust in acidic solution to Vanadium (II) ions. The required number of moles of Iodine to re-oxidize Vanadium (II) to VO²⁺ is:            

If CO₂ is passed into waste water containing CrO₄^–2 (yellow), then, solution turns:           

When 80 mL of 0.20 M HCl is mixed with 120 mL of 0.15 MKOH, the resulting solution is same as a solution of: 

200 ml M/2 HNO₃, 100 ml M/1 NaOH, 200 ml M/5 HCl are mixed together. The normality and the nature of mixture is:           

A 5.25% solution of a substance is isotonic with a 1.5 % solution of Urea in the same solvent. If density of both the solutions are assumed to be equal to 1.0g cm^–3, molar mass of substance will be:           

Which of the following condition is not satisfied by an ideal solution ?           

At a suitable pressure near the freezing point of water, there exists:           

0.1 M NaCl and 0.05 M BaCl₂ solutions are separated by a semi-permeable membrane in a container. For this system, choose the correct alternative:           

Normal boiling point of water is 373K (at 760mm). Vapor pressure of water at 298K is 23mm. If enthalpy of evaporation is 40656 J/mol, boiling point of water 23mm pressure will be: 
[R = 8.314821 JK^-1mol^-1]           

A 20 mL solution of Na₂SO₃ required 30 mL of 0.01 M Potassium dichromate solution for oxidation to Na₂SO₄. Hence, Molarity of Na₂SO₃ solution is:           

In [Cr(O₂)(NH₃)₄(H₂O)]Cl₂, oxidation number of Cr is +3, the, O₂ will be in form:           

Oxidation state of sulfur in KSCN is (assume there is triple bond between C and N):           

Starch paper is used to test the presence of:

10 mL of a blood sample (containing Calcium oxalate) is dissolved in an acid. It required 20 mL of 0.001 M KMnO₄ (which oxidizes oxalate to CO₂). Hence, Ca²⁺ ion in 10 mL blood is:             

0.01 M solution of KCl and BaCl₂ are prepared in water. The freezing point of KCl is found to be –2⁰C. What is freezing point of BaCl₂ solution when it is completely ionized?           

The correct order of increasing boiling points of the following aqueous solutions:           
(I). 0.0001 M NaCl          
(II). 0.0001 M Urea            
(III). 0.001 MgCl₂            
(IV). 0.01 M NaCl           

58.5 g of NaCl and 180 g of Glucose were separately dissolved in 1000 mL of water. Identify the correct statement regarding elevation of boiling point of resulting solutions:           

The elevation in boiling point of a solution of 13.44g of CuCl₂ in 1Kg of water using following information will be ?
(M.Wt of CuCl₂ = 134.4, Kb = 0.52 K molal^–1, assume CuCl₂ as a strong electrolyte):           

Consider separate solutions of 0.5M C₂H₅OH (aq), 0.1 M Mg₃(PO₄)₂ (aq), 0.25 M KBr (aq), 0.125 M Na₃PO₄ (aq). Which statement is true about these solutions, assuming all salts to be strong electrolytes ?