Which of the following is a redox reaction?

CaO +

No worries! We‘ve got your back. Try BYJU‘S free classes today!

+ 2HCl

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

CaO + 2HCl +

No worries! We‘ve got your back. Try BYJU‘S free classes today!

CaO + 2HCl +

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B
+ 2HCl

$H_{2}$ + $C l_{2}$ $\to$ 2HCl is an example of Redox reaction. Here the oxidation state of $H_{2}$ changes from 0 to +1 whereas the oxidation state of $C l_{2}$ is reduced from 0 to -1 in HCl.

Suggest Corrections

Similar questions

Q. Calculate the percent of BaO in 29.0 g of a mixture of BaO and CaO which just reacts with 100.8 mL of 6.00 M HCl.

B a O + 2 H C l \to B a C l_{2} + H_{2} O

C a O + 2 H C l \to C a C l_{2} + H_{2} O

Q. How

H_{2} + C l_{2} \to 2 H C l

can be a redox reaction?

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. For the reaction,

C a O + 2 H C l \to C a C l_{2} + H_{2} O

1.23 g of CaO is reacted with excess of hydrochloric acid and of

C a C l_{2}

is formed. What is the per cent yield?

Which of the following is not an example of redox reaction?
(a) $C u O + H_{2} \to C u + H_{2} O$
(b) $F e_{2} O_{3} + 3 C O \to 2 F e + 3 C O_{2}$
(c) $2 K + F_{2} \to 2 K F$
(d) $B a C l_{2} + H_{2} S O_{4} \to B a S O_{4} + 2 H C l$

Join BYJU'S Learning Program

Which of the following is a redox reaction?

The correct option is B + 2HCl H2 + Cl2 → 2HCl is an example of Redox reaction. Here the oxidation state of H2 changes from 0 to +1 whereas the oxidation state of Cl2 is reduced from 0 to -1​ in HCl.

The correct option is B
+ 2HCl

$H_{2}$ + $C l_{2}$ $\to$ 2HCl is an example of Redox reaction. Here the oxidation state of $H_{2}$ changes from 0 to +1 whereas the oxidation state of $C l_{2}$ is reduced from 0 to -1 in HCl.