Question 1 :
Name the reagent from the following which can be used to distinguish zinc nitrate solution from magnesium nitrate.

Question 2 :
<table><tr><th>Column A</th> <th>Column B</th> </tr><tr><td>1. Pb{tex}^{2+}{/tex}</td> <td> a.Reddish brown</td> </tr><tr><td>2. Fe{tex}^{2+}{/tex}</td> <td>b.White insoluble in excess</td> </tr><tr><td>3. Zn{tex}^{2+}{/tex}</td> <td>c.Dirty green</td> </tr><tr><td>4. Fe{tex}^{3+}{/tex}</td> <td>d.White soluble in excess</td> </tr><tr><td>5. Cu{tex}^{2+}{/tex}</td> <td>e.White insoluble in excess</td> </tr><tr><td>6. Ca{tex}^{2+}{/tex}</td> <td>f.Blue</td> </tr></table>

Question 4 :
<table><tr><th>Column A</th> <th>Column B</th> </tr><tr><td>1. Copper (II) nitrate</td> <td>a.Green</td> </tr><tr><td>2. Iron (II) sulphate</td> <td>b.White</td> </tr><tr><td>3. Magnesium chloride </td> <td>c.Reddish brown</td> </tr><tr><td>4. Cobalt chloride</td> <td>d.Orange</td> </tr><tr><td>5. Iron (III) chloride</td> <td>e.Blue</td> </tr><tr><td>6. Potassium dichromate</td> <td>f.Black</td> </tr><tr><td>7. Copper (II) oxide</td> <td>e.Yellow</td> </tr></table>

Question 6 :
Which one of the following salt solutions on reaction with excess of ammonium hydroxide solution results finally in dissolution of the precipitate first formed ?

Question 7 :
A chloride which forms a precipitate that is soluble in excess of ammonium hydroxide is :

Question 8 :
Which one of the following salt solutions on reaction with excess of ammonium hydroxide solution gives a deep blue solution ?

Question 10 :
Which one of the following salt solutions on reaction with excess sodium hydroxide solution gives a clear solution finally ?

Question 11 :
The precipitate of which of the following compounds is soluble in excess of ammonia solution ?

Question 12 :
The precipitate of which of the following compounds is soluble in excess of ammonia solution ?

Question 13 :
Amphoteric oxides and hydroxides react with an………to give salt and water only.

Question 14 :
Which one of the following salt solutions on reaction with excess of ammonium hydroxide solution gives a deep blue solution ?