Câu 4 Các nhóm bazơ không bị phân hủy ở nhiệt. độ cao là: A. Fe(OH) 3 , KOH, Al(OH) 3 - B. Cu(OH) 2 , Fe(OH) 3 , Al(OH) 3 C. KOH, NaOH, Ca(OH)2 D. NaOH, Cu(OH) 2, Al(OH) 3

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Đáp án + Giải thích các bước giải:

Ta có: ${Bazo}$ tan sẽ không bị nhiệt phân hủy 

⇒ Câu ${C}$ ${KOH}$, ${NaOH}$, $Ca(OH)_{2}$ 

Đáp án:

`C`

Giải thích các bước giải:

-Các bazo tan được trong nước thì không bị nhiệt phân hủy

Vd: `KOH``,` `NaOH``,` `Ca(OH)_2``,` `Ba(OH)_2`

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