Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.

Chemistry : Equilibrium

Short Answer Type

231.

What is the significance (or importance) of pH value?

112 Views

232.

What is pOH of a solution? How is it related to its pH value?

100 Views

Long Answer Type

233.

Calculate the hydrogen ion concentration in the following biological fluids whose pH are given below:
(a) Human muscle-fluid, 6·83
(b) Human stomach fluid, 1·2
(c) Human blood, 7·38
(d) Human saliva, 6·4

225 Views

234. The pH of milk, black coffee, tomato juice, lemon juice and egg white are 6·8. 5·0, 4·2, 2·2 and 7·8 respectively. Calculate corresponding hydrogen ion concentration in each.

150 Views

Short Answer Type

235. Ionic product of water at 310K is 2·7 × 10^–14. What is the pH of neutral water at this temperature?

158 Views

236.

The concentration of hydrogen ion in a sample of soft drink is 3·8 × 10^-3 M. What is its pH value?

169 Views

237. Assuming complete dissociation, calculate the pH of the following solution:
0·003M HCl

108 Views

238. Assuming complete dissociation, calculate the pH of the following solution:
0.005M NaOH

173 Views

239. Assuming complete dissociation, calculate the pH of the following solution:
0·002M HBr

111 Views

240. Assuming complete dissociation, calculate the pH of the following solution:
0.002M KOH

147 Views