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प्रश्न
By squeezing lemon on a piece of rock the gas liberated turned lime water milky. which compound is present in the rock?
उत्तर
Compound presents in the rock is either a compound of carbonate or bicarbonate because acids react with carbonate or bicarbonate and liberate CO2. This carbon dioxide turns lime water milky.
संबंधित प्रश्न
Write any two important uses of bases.
Give the reaction of acid with nitrates. State the conditions under which they react.
Write the balanced equation for the preparation of the following compound (as major product) starting from iron and using only one other substance:
Iron (III) chloride
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?
Fill in the missing data in the following table
| Name of the salt | Formula | Salt obtained from | ||
| Base | Acid | |||
| (i) | Ammonium chloride | NH4Cl | NH4OH | ______ |
| (ii) | Copper sulphate | ______ | ______ | H2SO4 |
| (iii) | Sodium chloride | NaCl | NaOH | ______ |
| (iv) | Magnesium nitrate | Mg(NO3)2 | ______ | HNO3 |
| (v) | Potassium sulphate | K2SO4 | ______ | ______ |
| (vi) |
Calcium nitrate | Ca(NO3)2 | Ca(OH)2 | ______ |
Which of the following set of substances contain acids?
Acids have a sour taste and they are soapy to touch.
Complete the following equation.
HCl + ______ → NaCl + H2O
Complete the following equation.
Ca(OH)2 + ______ → ______ + H2O
Acidic or basic solutions are good conductors of electricity. Justify your answer.
