挑战习题
1
/5
单选题
难度:
1.两份等质量的铝粉,一份加入足量氢氧化钠溶液中,一份加入足量盐酸中,充分反应后收集到相同条件下的氢气体积比为
A
1︰1
B
2︰1
C
1︰4
D
1︰2
提示1:
MkFsKzJOYU9IKzJIPHN1Yj4yPC9zdWI+Tz09Mk5hQWxPPHN1Yj4yPC9zdWI+KzNIPHN1Yj4yPC9zdWI+4oaR
正确答案:
QQ==
6ZOd5pei6IO95LiO5rCi5rCn5YyW6ZKg5rq25ray5Y+N5bqU55Sf5oiQ5rCi5rCU77yM5ZCM5pe25Y+I6IO95LiO55uQ6YW45Y+N5bqU55Sf5oiQ5rCi77yM5Zyo6LSo6YeP55u4562J55qE6ZOd5Lit77yM5YW25a6M5YWo5Y+N5bqU6L2s56e755qE55S15a2Q5pWw55u4562J77yM5Y2z55Sf5oiQ55qE5rCi5rCU55qE6YeP55u45ZCM77yM5omA5Lul77yM5YWF5YiG5Y+N5bqU5ZCO5pS26ZuG5Yiw55u45ZCM5p2h5Lu25LiL55qE5rCi5rCU5L2T56ev5q+U5Li6Me+8mjHvvJs=
2
/5
单选题
难度:
2.铝分别与足量的稀盐酸和氢氧化钠溶液反应,当两个反应放出的气体在相同状况下体积相等时,反应中消耗的盐酸和氢氧化钠物质的量之比为
A
3:1
B
2:1
C
1:1
D
1:3
提示1:
MkFsKzJOYU9IKzJIPHN1Yj4yPC9zdWI+Tz09PTJOYUFsTzxzdWI+Mjwvc3ViPiszSDxzdWI+Mjwvc3ViPuKGkQ==
正确答案:
QQ==
5Zug5Li66ZOd5YiG5Yir5LiO6Laz6YeP55qE56iA55uQ6YW45Y+N5bqU77yaMkFsKzZIQ2w9PT0yQWxDbDxzdWI+Mzwvc3ViPiszSDxzdWI+Mjwvc3ViPuKGke+8m+mTneWIhuWIq+S4jui2s+mHj+eahOawouawp+WMlumSoOa6tua2suWPjeW6lO+8mjJBbCsyTmFPSCsySDxzdWI+Mjwvc3ViPk89PT0yTmFBbE88c3ViPjI8L3N1Yj4rM0g8c3ViPjI8L3N1Yj7ihpHjgILlj6/ku6XnnIvlh7rnlJ/miJBIPHN1Yj4yPC9zdWI+55u45ZCM5pe277yM5raI6ICX55qE55uQ6YW45ZKM5rCi5rCn5YyW6ZKg54mp6LSo55qE6YeP5LmL5q+U5Li6NjoyPTM6MeOAgg==
3
/5
单选题
难度:
3.有关Al与NaOH溶液反应的说法中,正确的是
A
铝是还原剂,其还原产物是Al(OH)
3
B
NaOH是氧化剂,其还原产物是H
2
C
铝是还原剂,H
2
O和NaOH都是氧化剂
D
H
2
O是氧化剂,Al被氧化
提示1:
MkFsKzJOYU9IKzJIPHN1Yj4yPC9zdWI+Tz09PTJOYUFsTzxzdWI+Mjwvc3ViPiszSDxzdWI+Mjwvc3ViPuKGke+8jOmHjeeCueaYr+awp+WMluWJgueahOWIpOaWreOAguivpeWPjeW6lOeahOacrOi0qOaYr+mTneWFiOS4juawtOWPjeW6lO+8jOeUn+aIkOeahOawouawp+WMlumTneS4juawouawp+WMlumSoOWPjeW6lOOAgg==
正确答案:
RA==
5Y+N5bqU55qE5a6e6LSo5piv77yaPGJyPumTneWcqOeiseaAp+eOr+Wig+S4iyzkuI7msLTlj43lupQ6PGJyPjJBbCs2SDxzdWI+Mjwvc3ViPk89MkFsKE9IKTxzdWI+Mzwvc3ViPiszSDxzdWI+Mjwvc3ViPuKGkSA8YnI+5rCi5rCn5YyW6ZOd5Lik5oCnLOS4juW8uueiseWPjeW6lO+8mjxicj5BbChPSCk8c3ViPjM8L3N1Yj4rTmFPSD1OYUFsTzxzdWI+Mjwvc3ViPisySDxzdWI+Mjwvc3ViPk88YnI+5Y+v5Lul55yL5Ye677yM6L+Y5Y6f5YmC5Li6QWzvvIzmsKfljJbliYLlj6rmnInmsLTjgILpgInmi6lE6aG544CC
4
/5
单选题
难度:
4.将等物质的量的镁和铝均匀混合,取等质量该混合物四份,分别加到足量的下列溶液中,充分反应后,放出氢气最多的是
A
3 mol·L
-1
盐酸
B
4 mol·L
-1
HNO
3
溶液
C
5 mol·L
-1
NaOH溶液
D
18.4 mol·L
-1
H
2
SO
4
溶液
提示1:
6ZyA5rOo5oSP5Zub56eN5rq25ray55qE5rWT5bqm5bm25LiN5b2x5ZON5Lqn55Sf5rCi5rCU55qE5aSa5bCR77yM6aKY5bmy5bey57uP5piO56Gu4oCc5rq25ray6L+H6YeP4oCd44CC
提示2:
MTguNCBtb2zCt0w8c3VwPu+8jTE8L3N1cD5IPHN1Yj4yPC9zdWI+U088c3ViPjQ8L3N1Yj7murbmtrLlt7LlsZ7kuo7mtZPnoavphbjvvIzpnIDopoHogIPomZHpkp3ljJbjgII=
正确答案:
QQ==
QumhueS4reehnemFuOWSjETpobnkuK3mtZPnoavphbjkuI7ph5HlsZ7lj43lupTkuI3kuqfnlJ/msKLmsJTvvJs8YnI+Q+mhueS4rU5hT0jmurbmtrLlj6rkuI7pk53lj43lupTogIzkuI3kuI7plYHlj43lupTvvIzogIxB6aG55Lit55uQ6YW45LiO6ZWB5ZKM6ZOd5Z2H6IO95Y+N5bqU77yMQemhueato+ehruOAgg==
5
/5
单选题
难度:
5.同温同压下的两份铝片,第一份与足量的盐酸反应,第二份与足量的烧碱溶液反应,测得第一份产生的气体为4g,第二份产生的气体6g,则两份铝片的质量之比为
A
1:1
B
2:3
C
3:2
D
1:6
提示1:
6ZOd5LiO6Laz6YeP55qE56iA55uQ6YW45Y+N5bqU77yaMkFsKzZIQ2w9PT0yQWxDbDxzdWI+Mzwvc3ViPiszSDxzdWI+Mjwvc3ViPuKGke+8m+mTneS4jui2s+mHj+eahOawouawp+WMlumSoOa6tua2suWPjeW6lO+8mjJBbCsyTmFPSCsySDxzdWI+Mjwvc3ViPk89PT0yTmFBbE88c3ViPjI8L3N1Yj4rM0g8c3ViPjI8L3N1Yj7ihpHjgII=
正确答案:
Qg==
6ZOd5LiO6Laz6YeP55qE56iA55uQ6YW45Y+N5bqU77yaMkFsKzZIQ2w9PT0yQWxDbDxzdWI+Mzwvc3ViPiszSDxzdWI+Mjwvc3ViPuKGke+8mzxicj7pk53kuI7otrPph4/nmoTmsKLmsKfljJbpkqDmurbmtrLlj43lupTvvJoyQWwrMk5hT0grMkg8c3ViPjI8L3N1Yj5PPT09Mk5hQWxPPHN1Yj4yPC9zdWI+KzNIPHN1Yj4yPC9zdWI+4oaR44CCPGJyPuS6p+eUn+ebuOWQjOmHj+eahOawouawlOaJgOa2iOiAl+eahEFs55qE6LSo6YeP5piv55u45ZCM55qE77yM6YKj5LmI5b2T5Lqn55Sf5rCi5rCU55qE6YeP5Li6NGfvvJo2Zz0yOjPml7bvvIzmiYDmtojogJfnmoRBbOeahOmHj+S5n+aYrzI6My4=