Advertisements
Advertisements
प्रश्न
Give the names and formulae of two strong bases and two weak bases.
उत्तर
Two strong and two weak bases are the following.
| Strong bases | Formula | Weak bases | Formula |
| 1. Sodium hydroxide | NaOH | 1. Magnesium hydroxide | Mg(OH)2 |
| 2. Potassium hydroxide | KOH | 2. Calcium hydroxide | Ca(OH)2 |
APPEARS IN
संबंधित प्रश्न
A white shirt has a yellow stain of curry. When soap is rubbed on this shirt during washing, the yellow stain turns reddish-brown. On rinsing the shirt with plenty of water, the reddish-brown stain turns yellow again.
Name the natural indicator present in curry stain.
Give the appropriate term defined by the statements given below :
The substance that releases hydronium ion as the only positive ion when dissolved in water.
The preparation of Lead sulphate from Lead carbonate is a two-step process. (Lead sulphate cannot be prepared by adding dilute Sulphuric acid to Lead carbonate.)
Why is the direct addition of dilute sulphuric acid to Lead carbonate an impractical method of preparing Lead sulphate?
Which of the following is an acid-base indicator?
Which one of the following acids undergoes complete ionisation?
Complete the following equation.
HCl + H2O → ______ + ______.
Complete the following equation.
ZnO + 2HCl → ______ + ______.
Complete the following equation.
Zn + ______ → Na2ZnO2 + H2 ↑
Why does blue color copper sulphate become white on heating?
You are supplied with five solutions: A, B, C, D and E with pH values as follows: A = 1.8, B = 7, C = 8.5, D = 13, and E = 5
Classify these solutions as neutral, slightly or strongly acidic and slightly or strongly alkaline.
Which solution would be most likely to liberate hydrogen with powdered zinc metal. Give a word equation for each reaction.
