$CaO(s) + H_{2} O (l) \to {Ca(OH)}_{2} (aq) + Heat$

What cannot be inferred from the above reaction?

Water

H_{2} O

is in vapour state.

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

Calcium hydroxide

{Ca(OH)}_{2}

is aqueous in nature.

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

Heat is released in the reaction.

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

Calcium oxide (

CaO

) is solid.

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

Open in App

Solution

The correct option is A Water $H_{2} O$ is in vapour state.

Calcium oxide ( $CaO$ ) is mentioned as (s), hence it is in solid state.

Water ( $H_{2} O$ ) is mentioned as (l), hence it is in liquid state and not in vapour state.

Calcium hydroxide ${Ca(OH)}_{2}$ is mentioned as (aq), since it forms a solution with water.

Heat is released in the reaction.

Suggest Corrections

Similar questions

Complete the following chemical reactions.
$P b S_{(s)} + H_{2} O_{2 (a q)} \to$

$M n O_{4 (a q)}^{-} + H_{2} O_{(g)} \to$

$C a O_{(s)} + H_{2} O_{(l)} \to$

$A l C l_{3 (g)} + H_{2} O_{(l)} \to$

$C a_{3} N_{2 (s)} + H_{2} O_{(l)} \to$
Classify the above into (a) hydrolysis, (b) redox and (c) hydration reactions.

$C a O (s) + H_{2} O (l) \to C a (O H)_{2} (a q) + h e a t$

What can be inferred from the above reaction?

(i) $C a O$ is solid.

(ii) $C a O$ is reactive with water.

(iii) $H_{2} O$ is liquid.

(iv) $H_{2} O$ is in vapour state.

(v) $C a (O H)_{2}$ forms a solution with water

(vi) The reaction is exothermic.

$CaO(s) + H_{2} O (l) \to {Ca(OH)}_{2} (aq) + Heat$

What can be inferred from the above reaction?

CaO (s) + H_{2} O (l) 🡪 Ca {(OH)}_{2} (aq) + Heat

What can be inferred from the above reaction?

$C a O (s) + H_{2} O (l) \to C a (O H)_{2} (a q) + h e a t$

What can be inferred from the above reaction?

(i) $C a O$ is solid.

(ii) $C a O$ reacts with water.

(iii) $H_{2} O$ is liquid.

(iv) $H_{2} O$ is in vapour state.

(v) $C a (O H)_{2}$ forms a solution with water.

(vi) The reaction is exothermic.

Join BYJU'S Learning Program