11 questions · timed · auto-graded
| Column-I | Column-II |
| A. $K _{ a }=\frac{\alpha^2 c }{1- c }$ | 1. $pH$ value |
| B. $pH = pK _{ a }+\log \frac{\text { [salt }]}{\text { [acid }]}$ | 2. Buffer capacity |
| C. $\beta=\frac{ dB }{ d ( pH )}$ | 3. Ostwald's dilution law |
| D. $-\log _{10}\left[ H _3 O ^{+}\right]$ | 4. Henderson - Hasselbalch equation |
| Column-I | Column-II |
| A. Orange juice | 1. $pH =11$ |
| B. Ammonia solution | 2. $pH =3$ |
| C. Baking soda | 3. $pH =4$ |
| D. Tomato | 4. $pH =9$ |
| Column-I | Column-II |
| A. $pH =8$ | 1. Soapy water |
| B. $pH =10$ | 2. Drain cleaner |
| C. $pH =12$ | 3. Sea water |
| D. $pH =14$ | 4. Indigestion tablet |
| Column-I | Column-II |
| A. Battery acid | 1. $pH =2$ |
| B. Vinegar | 2. $pH =7$ |
| C. Black coffee | 3. $pH =0$ |
| D. Water | 4. $pH =5$ |
| Column-I | Column-II |
| A. $CH _3 COO ^{-}$ | 1. Very weak acid |
| B. $NH _2{ }^{-}$ | 2. Weak base |
| C. $OH ^{-}$ | 3. Weak acid |
| D. $H _3 O ^{+}$ | 4. Strong base |
| Column-I | Column-II |
| A. Strong base | 1. $OH ^{-}$ |
| B. Weak base | 2. $O ^{2-}$ |
| C. Very weak base | 3. $F ^{-}$ |
| D. Very weak acid | 4. $NO _3^{-}$ |
| Column-I | Column-II |
| A. $HF$ | 1. Strong acid |
| B. $H _2 SO _4$ | 2. Strong base |
| C. $H _2$ | 3. Weak acid |
| D. $O ^{2-}$ | 4. Very weak acid |
| Column-I | Column-II |
| A. $HClO _4$ | 1. Very weak base |
| B. $HNO _2$ | 2. Very weak acid |
| C. $OH ^{-}$ | 3. Weak acid |
| D. $ClO _4^{-}$ | 4. Strong acid |
| Column-I | Column-II |
| A. $H _2 O + H _3 O ^{+}$ | 1. Lewis base |
| B. $CH _3 COOH + CH _3 COONa$ | 2. Conjugate acid base pair |
| C. $BF _3, AlCl _3$ | 3. Buffer mixture |
| D. $CN ^{-}, SO _4{ }^{2-}$ | 4. Lewis acids |
| Column-I | Column-II |
| A. Sulphuric acid | 1. Soap industry |
| B. Sodium hydroxide | 2. Baking soda |
| C. Magnesium hydroxide | 3. Fertilizer industry |
| D. Sodium bicarbonate | 4. Antacid tabletes |
