CaO s - H 2 O l - Ca OH 2 aq - HeatWhat can be inferred from the above reaction-A- Calcium oxide CaO is solid-B- Water H 2 O is in vapour state-C- Calcium hydroxide - Ca OH 2- is aqueous in nature-D- The given reaction is exothermic in nature-

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Chemical Reaction

CaO s + H 2 O...

Question

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

What can be inferred from the above reaction?

Calcium oxide (

CaO

) is solid.

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Water (

H_{2} O)

is in vapour state.

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Calcium hydroxide [

{Ca(OH)}_{2}

] is aqueous in nature.

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The given reaction is exothermic in nature.

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Solution

The correct options are
A Calcium oxide ( $CaO$ ) is solid.
C Calcium hydroxide [ ${Ca(OH)}_{2}$ ] is aqueous in nature.
D The given reaction is exothermic in nature.

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 so it is an exothermic reaction.

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Similar questions

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

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.

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

What can be inferred from the above reaction?

(i) $C a O$ is solid.

(ii) $C a O$ can react easily 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

Q. Which of the following is true for the given equation?

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

Cao (s) + $H_{2} O$ (l) → $C a (O H)_{2}$ (aq) + heat.

What can be inferred from the above reaction?

(i) CaO is solid.

(ii) CaO 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.

The common names of $C a O$ and $C a (O H)_{2}$ respectively are

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CaO(s)+H2O (l)→Ca(OH)2(aq)+Heat What can be inferred from the above reaction?

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

What can be inferred from the above reaction?