Which reaction will not occur out of the following

Question

Which reaction will not occur out of the following (A) Fe + H 2 SO 4 longrightarrow H 2+ FeSO 4 (B) Cu +2 AgNO 3 longrightarrow Cu ( NO 3)2+2 Ag (C) 2 KBr + I 2 longrightarrow 2 Kl + Br 2 (D) CuO + H 2 longrightarrow Cu + H 2 O

Tardigrade Admin · Accepted Answer

2 KBr + I 2 longrightarrow 2 KI + Br 2 reaction is not possible. Reaction of potassium bromide with iodine gives no product, as the activity of halogens decreases down the group. Hence, iodine is less reactive than bromine and thus, it cannot displace bromine from its compounds. KBr + I 2 longrightarrow No reaction Reaction of copper with silver nitrate is possible, as copper is more reactive than silver, so it can displace silver from its salt solution. Cu + 2AgNO3 longrightarrow Cu(NO3)2 + 2Ag Reaction of iron with sulphuric acid is also possible as iron is placed above hydrogen is activity series and thus can displace hydrogen from dilute acid like H2SO4, HCl. Fe + H2SO4 longrightarrow H2 + FeSO4 CuO+H2 longrightarrow Cu + H2O; is a redox reaction, that proceeds via electrolysis.

Q. Which reaction will not occur out of the following

$F e + H_{2} S O_{4} ⟶ H_{2} + F e S O_{4}$

$C u + 2 A g N O_{3} ⟶ C u (N O_{3})_{2} + 2 A g$

$2 K B r + I_{2} ⟶ 2 K l + B r_{2}$

$C u O + H_{2} ⟶ C u + H_{2} O$

Q. Which reaction will not occur out of the following

Fe+H2​SO4​⟶H2​+FeSO4​

Cu+2AgNO3​⟶Cu(NO3​)2​+2Ag

2KBr+I2​⟶2Kl+Br2​

CuO+H2​⟶Cu+H2​O

$F e + H_{2} S O_{4} ⟶ H_{2} + F e S O_{4}$

$C u + 2 A g N O_{3} ⟶ C u (N O_{3})_{2} + 2 A g$

$2 K B r + I_{2} ⟶ 2 K l + B r_{2}$

$C u O + H_{2} ⟶ C u + H_{2} O$