State the safety precaution you would take for the preparation hydrochloric acid.

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Solution

Following precautions must be taken:
1) The reaction mixture show be initially heated slowly in order to control the evolution of $H C l$ gas.
2) The lower end of the thistle funnel in the arrangement should dip below the level of the acid otherwise $H C l$ gas will escape.

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State the safety precaution you would take for the preparation hydrochloric acid.

Following precautions must be taken:1) The reaction mixture show be initially heated slowly in order to control the evolution of HCl gas.2) The lower end of the thistle funnel in the arrangement should dip below the level of the acid otherwise HCl gas will escape.

Following precautions must be taken:
1) The reaction mixture show be initially heated slowly in order to control the evolution of $H C l$ gas.
2) The lower end of the thistle funnel in the arrangement should dip below the level of the acid otherwise $H C l$ gas will escape.