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प्रश्न
Bases are soapy to touch when they are dry.
विकल्प
True
False
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उत्तर
Bases are soapy to touch when they are dry- false.
Correct statement:
Bases are soapy to touch only in aqueous media, not in dry nature.
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संबंधित प्रश्न
Give one example in the following case:
A hydroxide which is insoluble in water.
Main constituent of base is ______.
Metal corrodes due to salts.
Write the balanced equation for the reaction of:
A named acid and a named alkali.
Which among the following is not a base?
Match the important chemicals given in Column (A) with the chemical formulae given in Column (B)
| Column (A) | Column (B) |
| (a) Plaster of Paris | Ca(OH)2 |
| (b) Gypsum | CaSO4. 1/2 H2O |
| (c) Bleaching Powder | CaSO4.2H7O |
| (d) Slaked Lime | CaOCl2 |
Phenolphthalein gives ______ colour with lime water.
Which of the following pairs are weak bases?
Al(OH)3 & Zn(OH)2 are not alkalis.
Choose the most appropriate answer from
(SO2, SiO2, Al2O3, CO, MgO, Na2O)
A basic oxide.
