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BÀI TẬP TRẮC NGHIỆM HÓA ĐẠI CƯƠNG VÀ VÔ CƠ CẨM NANG DÙNG LUYỆN THI THPTQG CHẤT LƯỢNG CAO (COLOR BOOK)

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12<br />

OXI <strong>HÓA</strong><br />

OXI <strong>HÓA</strong><br />

–<br />

E 0 (OH 1 /K 1 ) < E 0 (OH 2 /K 2 )<br />

không<br />

OH 1<br />

K 1<br />

OH 2<br />

"<br />

K 2<br />

1<br />

3+<br />

/Fe 2+ + /Ag):<br />

(A) Ag + , Cu 2+ , Fe 3+ , Fe 2+ . (B) Fe 3+ , Cu 2+ , Ag + , Fe 2+ .<br />

(C) Ag + , Fe 3+ , Cu 2+ , Fe 2+ . (D) Fe 3+ , Ag + , Cu 2+ , Fe 2+ .<br />

2<br />

2+<br />

, Sn 2+ , Ni 2+ , Fe 2+ , Pb 2+<br />

(A) Pb 2+ > Sn 2+ > Fe 2+ > Ni 2+ > Zn 2+ .<br />

(B) Sn 2+ > Ni 2+ > Zn 2+ > Pb 2+ > Fe 2+ .<br />

(C) Zn 2+ > Sn 2+ > Ni 2+ > Fe 2+ > Pb 2+ .<br />

(D) Pb 2+ > Sn 2+ > Ni 2+ > Fe 2+ > Zn 2+ .<br />

3 Cho dãy các ion: Fe 2+ , Ni 2+ , Cu 2+ , Sn 2+ . Trong cùng<br />

ãy là<br />

(A) Sn 2+ . (B) Cu 2+ . (C) Fe 2+ . (D) Ni 2+ .<br />

4<br />

(1) AgNO 3 + Fe(NO 3 ) 2 3 ) 3<br />

Dãy các ion<br />

2 + H 2<br />

(A) Mn 2+ , H + , Fe 3+ , Ag + . (B) Ag + , Fe 3+ , H + , Mn 2+ .<br />

(C) Ag + , Mn 2+ , H + , Fe 3+ . (D) Mn 2+ , H + , Ag + , Fe 3+ .<br />

2<br />

272

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