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What Are the Important Precautions? - Chemistry

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Question

What are the important precautions?

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Solution

Important precautions are -
(i)The lower end of thistle funnel must be dipped below the concentrated H2SO4.
(ii)Temperature should be maintained nearly 200°C because at higher temperature -
(a) The apparatus may break
(b) Fuel is wasted.
(c) Sodium sulphate formed in the reaction forms a crust on the surface which is difficult to remove.

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Chapter 8: Study of Compounds-I: Hydrogen Chloride - Exercise 2 [Page 199]

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Frank Chemistry Part 2 [English] Class 10 ICSE
Chapter 8 Study of Compounds-I: Hydrogen Chloride
Exercise 2 | Q 2.5 | Page 199
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