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प्रश्न
Metals form basic hydroxides. Which of the following metal hydroxide is the least basic?
विकल्प
Mg(OH)2
Ca(OH)2
Sr(OH)2
Ba(OH)2
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उत्तर
Mg(OH)2
Explanation:
As the ionization enthalpy increases from Mg →Ba, the M – O bond becomes weaker and weaker down the group and hence basicity increases down the group. Thus, Mg(OH)2 is least basic.
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संबंधित प्रश्न
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By adding gypsum to cement
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(i) BeSO4
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(iii) BaSO4
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| (Metal) | (Application) |
| (a) Cs | (I) High temperature thermometer |
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| (d) Si | (IV) Bullet proof vest |
Choose the most appropriate answer from the options given below:
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Reason (R) : Lithium has higher polarising power than other alkali metal group members.
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