Which of the following reactions leads to the formation of a substance in the colloidal state

C u + H g C l_{2} \to C u C l_{2} + H g

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2 H N O_{3} + 3 H_{2} S \to 3 S + 4 H_{2} O + 2 N O

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2 M g + C O_{2} \to 2 M g O + C

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C u + C u C l_{2} \to C u_{2} C l_{2}

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Solution

The correct option is B $2 H N O_{3} + 3 H_{2} S \to 3 S + 4 H_{2} O + 2 N O$
$2 H N O_{3} + 3 H_{2} S \to 3 S s o l + 4 H_{2} O + 2 N O_{2}$

Sulphur sol contains large aggregates of sulphur molecules such that the size of aggregate come in colloidal range.

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Similar questions

Q. Which of the following reactions is a decomposition reaction?
(a) CaCO₃ ⟶CaO + CO₂
(b) AgNO₃ + NaCl ⟶ AgCl + NaNO₃
(c) CuO + 2HCl ⟶ CuCl₂ + H₂O
(d) C + O₂ ⟶ CO₂

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

2. Assign oxidation states to this reaction and determine which element is oxidized/reduced and which one is the reducing agent/oxidizing agent. 3H2S + 2HNO3 Æ 3S + 2NO + 4H2O

Q. 6. Identify the oxidising agent (oxidant) in the following reactions;

\circ (a) P b_{3} O_{4} + 8 H C l \to 3 P b C l_{2} + C l_{2} + 4 H_{2} O \circ (b) 2 M g + O_{2} \to 2 M g O \circ (c) C u S O_{4} + Z n \to C u + Z n S O_{4} \circ (d) V_{2} O_{5} + 5 C a \to 2 V + 5 C a O \circ (e) 3 F e + 4 H_{2} O \to F e_{3} O_{4} + 4 H_{2} \circ (f) C u O + H_{2} \to C u + H_{2} O

which of the following reactions show evolution of gas.

a.2AgCl ---2Ag +Cl₂

b. Pb + CuCl_{2 ---}PbCl₂₊Cu

c.CuO + H₂--- Cu + H₂O

d.ZnO + C ---- Zn + CO

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Which of the following reactions leads to the formation of a substance in the colloidal state

The correct option is B 2HNO3+3H2S→3S+4H2O+2NO2HNO3+3H2S→3Ssol+4H2O+2NO2Sulphur sol contains large aggregates of sulphur molecules such that the size of aggregate come in colloidal range.

The correct option is B $2 H N O_{3} + 3 H_{2} S \to 3 S + 4 H_{2} O + 2 N O$
$2 H N O_{3} + 3 H_{2} S \to 3 S s o l + 4 H_{2} O + 2 N O_{2}$

Sulphur sol contains large aggregates of sulphur molecules such that the size of aggregate come in colloidal range.