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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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A<br />

không<br />

(A) 3. (B)<br />

(C) 3. (D) 2.<br />

B<br />

C<br />

(A) Fe 2+ oxi h<br />

(B)<br />

2+<br />

không đúng là:<br />

(C) Fe 3+ 2+ .<br />

(D)<br />

2+<br />

, H + , Cu 2+ , Ag + .<br />

X + 2YCl 3 2 + 2YCl 2 ; Y + XCl 2 2 + X.<br />

(A) Ion Y 2+ 2+ .<br />

(B)<br />

2+<br />

.<br />

(C)<br />

(D) Ion Y 3+ 2 + .<br />

D<br />

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

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

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

E<br />

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

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

F<br />

2+<br />

/Fe, Cu 2+ /Cu,<br />

Fe 3+ /Fe 2+<br />

(A) Fe 2+ 2+ .<br />

(B) Cu 2+ 2+ thành Fe 3+ .<br />

(C) Fe 3+ 2+ .<br />

(D) C<br />

3+<br />

thành Fe.<br />

4<br />

274

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