Related InterviewSolutions

• `K_(f)` for water is `1.86 K kg mol^(-1)`. IF your automobile radiator holds `1.0 kg` of water, how many grams of ethylene glycol `(C_(2)H_(6)O_(2))` must you add to get the freezing point of the solution lowered to `-2.8^(@)C` ?A. 72 gB. 93 gC. 39 gD. 27 g
• `20`g of a binary electrolyte(mol.wt.=`100`)are dissolved in `500`g of water.The freezing point of the solution is `-0.74^(@)CK_(f)=1.86K "molality"^(-1)`.the degree of ionization of the electrolyte isA. `0%`B. `100%`C. `75%`D. `50%`
• When `0.004 M Na_(2)SO_(4)` is an isotonic acid with `0.01 M `glucose, the degree of dissociation of `Na_(2)SO_(4)` isA. `75%`B. `50%`C. `25%`D. `85%`
• Two solutions of HCl, A and B have concentration of 0.5 N and 0.1 M respectively . The volume of solutions A and B required to make 2 L of 0.2 N HCl areA. `0.5L" of " A+1.5L" of " B`B. `1.5L" of " A+0.5L" of " B`C. `1.0L" of " A+1.0L" of " B`D. `0.75L" of " A+1.25L" of " B`
• Which of the following concentration terms is/are independent of temperature ?A. MolalityB. Molality and mole fractionC. Molality and mole fractionD. Molality and normality
• What Is the number of moles of `H_(2)SO_(4)` required to prepare `5.0L" of a"2.0M` solution of `H_(2)SO_(4)` ?A. `10`B. `5.0`C. `20`D. `2.5`
• 20 mL of HCI soution requires 19.85 mL of 0.01 M NaOH solution for complete neutralization . The molarity of HCI solution is _______M.A. `0.0099`B. `0.0099`C. `0.99`D. `0.1M`
• Lowering of vapour pressure is highest forA. `0.1MBaCl_(2)`B. `0.1M" glucose"`C. `0.1MMgSO_(4)`D. urea
• Osmotic pressure present in the fluid inside the blood cell is equivalent toA. `0.9%(m//V)NaCl" solution"`B. `"less than "0.9%(m//V)NaCl" solution"`C. `"more than "0.9%(m//V)NaCl" solution"`D. `0.9%(m//V)Na_(2)SO_(4)" solution"`
• Which of the following is not a colligative property?A. Depression in freezing pointB. Elevation in boiling pointC. Optical activityD. Relative lawering in vapour pressure