Which of the following reactions involve Iron as a reactant-i Fe -2 HCl - FeCl 2- H 2ii FeSO 4- Mg - MgSO 4- Feiii FeCl 2-2 NaOH - Fe OH 2-2 NaCliv 4 Fe -3 O 2-2 H 2 O - 2 Fe 2 O 3 - H 2 OA- ii and iiiB- i- ii and ivC- i and ivD- All of the above

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Standard VIII

Chemistry

Chemical Reactions

Which of the ...

Question

Which of the following reactions involve Iron as a reactant?

(i) $Fe + 2 HCl \to {FeCl}_{2} + H_{2}$

(ii) ${FeSO}_{4} + Mg \to {MgSO}_{4} + Fe$

(iii) ${FeCl}_{2} + 2 NaOH \to Fe {(OH)}_{2} + 2 NaCl$

(iv) $4 Fe + 3 O_{2} + 2 H_{2} O \to 2 {Fe}_{2} O_{3} . H_{2} O$

(ii) and (iii)

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(i) , (ii) and (iv)

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(i) and (iv)

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All of the above

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Solution

The correct option is C (i) and (iv)
Reactants are the substances that take part in a chemical reaction and as a result of the chemical reaction, form new substances called as products.

A chemical equation representing a chemical reaction is written as:
Reactants → Products

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Similar questions

Q. Which of the following reactions will take place?
A. Mg + ZnSO₄ → MgSO₄ + Zn
B. Zn + CuCl₂ → ZnCl₂ + Cu
C. Cu + FeSO₄ → CuSO₄ + Fe
D. Fe + MgCl₂ → FeCl₂ + Mg

(a) C and D
(b) A and B
(c) A, B and C
(d) all the above

Q. Question 18
Which of the following are combination reactions?

(i)

2 {KClO}_{3} Heat \to 2 KCl + 3 O_{2}

(ii)

MgO + H_{2} O \to {Mg(OH)}_{2}

(iii)

4 Al + 3 O_{2} \to 2 {Al}_{2} O_{3}

(iv)

Zn + {FeSO}_{4} \to {ZnSO}_{4} + Fe

(a) (i) and (iii)
(b) (iii) and (iv)
(c) (ii) and (iv)
(d) (ii) and (iii)

Q. Question 18
Which of the following are combination reactions?

(i)

2 {KClO}_{3} Heat \to 2 KCl + 3 O_{2}

(ii)

MgO + H_{2} O \to {Mg(OH)}_{2}

(iii)

4 Al + 3 O_{2} \to 2 {Al}_{2} O_{3}

(iv)

Zn + {FeSO}_{4} \to {ZnSO}_{4} + Fe

(a) (i) and (iii)
(b) (iii) and (iv)
(c) (ii) and (iv)
(d) (ii) and (iii)

Compounds showing cannizaro's reaction are
(i) $C H_{3} C H_{2} C H O$ (ii) $C H C l_{2} C H O$ (iii) $(C H_{3})_{3} C - C H O$ (iv) $C_{6} H_{5} C H O$

Q. Which of the following are redox reactions?
I.

P C l_{3} + C l_{2} \to P C l_{5}

II.

C u + 2 A g N O_{3} \to C u (N O_{3})_{2} + 2 A g

III.

C O_{2} + 2 L i O H \to L i_{2} C O_{3} + H_{2} O

IV.

F e C l_{2} + 2 N a O H \to F e (O H)_{2} + 2 N a C l

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Which of the following reactions involve Iron as a reactant? (i) Fe + 2HCl →FeCl2 + H2 (ii) FeSO4 + Mg →MgSO4 + Fe (iii) FeCl2 + 2NaOH → Fe(OH)2 + 2NaCl (iv) 4Fe + 3O2 + 2H2O → 2Fe2O3.H2O

The correct option is C (i) and (iv)Reactants are the substances that take part in a chemical reaction and as a result of the chemical reaction, form new substances called as products. A chemical equation representing a chemical reaction is written as: Reactants → Products

Which of the following reactions involve Iron as a reactant?

(i) $Fe + 2 HCl \to {FeCl}_{2} + H_{2}$

(ii) ${FeSO}_{4} + Mg \to {MgSO}_{4} + Fe$

(iii) ${FeCl}_{2} + 2 NaOH \to Fe {(OH)}_{2} + 2 NaCl$

(iv) $4 Fe + 3 O_{2} + 2 H_{2} O \to 2 {Fe}_{2} O_{3} . H_{2} O$

The correct option is C (i) and (iv)
Reactants are the substances that take part in a chemical reaction and as a result of the chemical reaction, form new substances called as products.

A chemical equation representing a chemical reaction is written as:
Reactants → Products