Q1.
The formula weight of H2SO4 is 98. The weight of the acid in 400 mL of 0.1 M solution is:
Q2.
Normality of 2M sulphuric acid is:
Q3.
If pH = 3.31, then find out [H+] (Approx):
Q4.
If [OH–] = 5.0 × 10–5 M then pH will be:
Q5.
Basicity of H3PO3 and H3PO2 are respectively:
Q6.
Find out pH of solution having 2 × 10–3 moles of OH– ions in 2 litre solution:
Q7.
pH of tomato juice is 4.4. Then concentration of H3O+ will be:
Q8.
8 g NaOH is dissolved in one litre of solution, the molarity of the solution is:
Q9.
The amount of acetic acid present in 100 mL of 0.1M solution is:
Q10.
The number of milli equivalents of acid in 100 mL of 0.5N HCl solution is:
Q11.
If the molar concentration of MgCl2 is 1.5 × 10–3 mol L–1, the concentration of chloride ions in g ion L–1 is:
Q12.
Degree of dissociation of 0.1 N CH3COOH is: (Dissociation constant = 1 × 10–5)
Q13.
The degree of dissociation of acetic acid is given by the expression α = 0.1 × C–1 (where C = concentration of the acid) What is the pH of the solution:
Q14.
Ostwald's dilution law is not applicable for strong electrolytes because:
Q15.
The degree of ionisation of a compound depends upon:
Q16.
Find out Ka for 10–2 M HCN acid, having pOH = 10:
Q17.
Which of the following will occur if a 1.0 M solution of a weak acid is diluted to 0.01 M at constant temperature:
Q18.
The extent of ionisation of weak electrolytes increases:
Q19.
If Ka of HCN = 4 × 10–10, then the pH of 2.5 × 10–1 molar HCN (aq) is:
Q20.
The molarity of nitrous acid solution at which its pH becomes 2. (Ka = 4.5 × 10–4):
Q21.
Ionic product of water will increase, if:
Q22.
For water at 25°C, 2 × 10–7 moles per litre is the correct answer for which one of the following:
Q23.
At 25°C, the dissociation constant for pure water is given by:
Q24.
Ionic product of water is equal to:
Q25.
For pure water, addition of H+ and OH– ion concentrations at 90°C is:
Q26.
At a certain temperature, pure water has [H3O+] = 10–6.7 mol L–1. What is the value of Kw at this temperature:
Q27.
At 373 K, temp. the pH of pure H2O can be:
Q28.
Which of the following is a true statement:
Q29.
Which of the following is not an acidic salt:
Q30.
Which is a basic salt:
Q31.
The process of neutralisation invariably results in the production of:
Q32.
Which of the following is an acidic salt:
Q33.
The mixed salt among the following is:
Q34.
At 90°C, the pH of 0.1M NaCl aqueous solution is: