Related InterviewSolutions

• Arrange the acids (i) H2SO3(ii) H3PO3 and (iii) HClO3 in the decreasing order of acidity. (a) (i) > (iii) > (ii) (b) (i) > (ii) > (iii) (c) (ii) > (iii) > (I) (d) (iii) > (i)> (ii)
• Fill in the blanks.1. ………. theory does not explain the behaviour of acids and base in non aqueous solvents. 2. According to Lowry Bronsted theory, an acid is defined as a substance that has a tendency to ………. a proton and base is a substance that has a tendency to ………. a proton. 3. HCI and Cl are called ………. pairs. 4. A ………. acid is a positive ion or an electron deficient molecule. 5. ………. is an anion or neutral molecule that donates one lone pair of electrons. 6. The ligands act as ……. and the central metal atoms that accepts a pair of electrons behave as a ………….7. Carbonium ion act as ………. and carbanion act as ………. 8. Acids with ……. greater than ten are considered as strong acids and less than one are called weak acids. 9. OH and H are considered as …………10. ClO4- , Cl- , HSO4 , NO3- are considered as ……….
• Sodium chloride is purified by passing HCl gas in a impure solution of sodium chloride. It is based on …………(a) Buffer action (b) Common ion effect (c) Association of salt (d) Hydrolysis of salt
• Which of the following is the strongest Lewis acid?(a) BI3 (b) BBr3 (c) BCI3(d) BF3
• The highest pH 14 is given by ………. (a) 0.1 M H2SO4 (b) 0.1 M NaOH (c) 1 N NaOH (d) 1 N HCl
• pH of water is 7. When a substance Y is added in water, the pH becomes 13. The substance Y is a salt of ........(a) strong acid and strong base (b) weak acid and weak base (c) strong acid and weak base (d) weak acid and strong base
• Which one of the following substance has the highest proton affinity? (a) H2O (b) H2S (c) NH3(d) PH3
• The salt of strong acid and strong base does not undergo hydrolysis. Explain.
• Assertion(A): With the increase in temperature, the ionic product of water also increases. Reason (R): The dissociation of water is an endothermic reaction. (a) Both A and R are correct and R is the correct explanation of A (b) A is correct but R is wrong (c) A is wrong but R is correct(d) Both A and R are wrong
• The value of ionic product of water at 25°C is ……… (a) 1 x 10-7 (b) 1 x 107 (c) 1 x 10-14 (d) 1 x 1014