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南一國中自然2下_ch3-3

Authored by 南一 自然

Science

8th Grade

Used 26+ times

南一國中自然2下_ch3-3
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列化合物,哪一個加入純水中,不會改變水溶液中氫離子濃度?

NaOH

HNO3

CO2

NaCl

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列何者可使廣用試紙呈黃橙色?

肥皂水

水果醋

加鹽料理米酒

高鈣牛奶

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

已知濃硫酸的pH值約為-1.4,胃液的pH值約為1.5,尿液的pH值約為6,肥皂水的pH值約為10,則何者的[H]最小?

濃硫酸

胃液

尿液

肥皂水

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

甲溶液可使紅色石蕊試紙變藍色,乙溶液可使酚酞試劑變無色,丙溶液可使廣用試劑呈綠色,依[OH]大小順序排列,何者正確?

甲>乙>丙

甲>丙>乙

乙>甲>丙

乙>丙>甲

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列四杯水溶液,何者的[H]與[OH]不會相等?

高梁酒

蔗糖水

食鹽水

氨水

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

(a) CO2,(b) SO2,(c) CaO,(d) MgO,(e) NH3;以上五種物質的水溶液,何者的pH值會小於7?

abc

cd

cde

ab

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列四種溶液,何者的pH值最大?

葡萄汁

柳橙汁

蘇打水

汽水

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