For drying ethyl alcohol in the laboratory, the compound used is :

calcium oxide

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calcium chloride

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ammonia

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none of the above

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Solution

The correct option is A calcium oxide
For drying ethyl alcohol in the laboratory, the compound used is calcium oxide.
Calcium oxide has high affinity for water. It reacts with water to form calcium hydroxide. Thus, it acts as a drying agent.
$C a O + H_{2} O \to C a (O H)_{2}$

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Similar questions

Q. Assertion:

C a C l_{2}

can't be used for drying ethyl alcohol
Reason: Calcium chloride can form an addition compound with ethyl alcohol

(a) Draw a labelled diagram for the laboratory preparation of hydrogen chloride gas.
(b) Give the balanced equation for the reaction.
(c) Name the drying agent used in drying hydrogen chloride gas.
(d) Phosphorus pentoxide and calcium oxide are good drying agents but they cannot be used to dry hydrogen chloride gas. Why?

Q. Which of the following substance(s) is/are used in laboratory for drying purposes?

Q. (i) How is ammonia gas prepared in laboratory starting from NH₄Cl? State the conditions and balanced equation for the preparation.
(ii) How is gas collected in a gas jar?
(iii) Name the substance used for drying ammonia gas. Why cannot substances such as conc. H₂SO₄, anhydrous calcium chloride and phosphorus pentoxide be used for drying ammonia gas?

Q.  Why calcium oxide cannot be used as a drying agent in laboratory preparation of HCl?

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For drying ethyl alcohol in the laboratory, the compound used is :

The correct option is A calcium oxideFor drying ethyl alcohol in the laboratory, the compound used is calcium oxide.Calcium oxide has high affinity for water. It reacts with water to form calcium hydroxide. Thus, it acts as a drying agent.CaO+H2O→Ca(OH)2

The correct option is A calcium oxide
For drying ethyl alcohol in the laboratory, the compound used is calcium oxide.
Calcium oxide has high affinity for water. It reacts with water to form calcium hydroxide. Thus, it acts as a drying agent.
$C a O + H_{2} O \to C a (O H)_{2}$