First slide

Types of chemical reactions

Question

I : $H^{+} + {OH}^{-} \to H_{2} O$
II : $H_{2} + \frac{1}{2} O_{2} \to H_{2} O$
Correct statement about rate of reaction in I & II is

Moderate

A

I-Moderately slow ; II-very slow
B

I- Instantaneous; II-moderately slow
C

I-Instantaneous; II-Instantaneous
D

I-Instantaneous; II-Very slow

Solution

I) Ionic reactions do not involve bond rearrangement $∴$ they are instantaneous
II)Formation of $H_{2} O$ from $H_{2} & O_{2}$ in absence of catalyst is very slow

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