Question

The dry HCl liberated during this process turns moist litmus paper to red colour. This is______ change.
A) Physical
B) Chemical
C) Both
D) Temperory​

Answer 1

Answer:

Chemical change

Hope it will help you

Answer 2

The dry HCl liberated during this process turns moist litmus paper into red color. This is a CHEMICAL change. (OPTION B)

CHEMICAL CHANGE -

• The reaction in which two or more substances combine together to form a new chemical substance.
• The reaction is irreversible because hydrogen gas is evolved so the reaction will not get back in the backward direction.
• When sulphuric acid reacts with solid sodium chloride particles, hydrochloride gas is liberated.
• The process is exothermic in nature.
• The HCl formed is acidic in both moist and aqueous states and turns blue litmus to red.