Rcinoval of CO_2 and H_2O from atmospheric air by using KOH and anhydr – InterviewSolution

InterviewSolution

1.	Rcinoval of CO_2 and H_2O from atmospheric air by using KOH and anhydrous CaCl_2 is an example _________ and __________ changes respectively.
Answer» chcmical, CHEMICAL PHYSICAL, physical chemical, physical physical, chemical Solution :By passing atmospheric AIR through KOH it will reacts with `CO_2` and forms `K_2CO_3` and `H_2O` which is an ACID base or neutralidation reaction. It is an example of chemical change. `CaCl_2` will ABSORB the water vapour from the atmospheric air. So it is an example of physical change.

Discussion

No Comment Found

Related InterviewSolutions

What are the advantages of anrometer over mercury barometer? Give the applications of aneroid barometer.
Which of the following metals on treatment with concentrated alkali gives hydrogen gas?
Tyndal effect cannot be shown by
Which among the following salts produces maximum number of metal ions per molecule when dissolved in a suitable solvent ?
What makes the use of hydrogen as a fuel difficult ? Give reasons in support of your answer.
Why are the double decomposition rcac:Lions also called double dispbcement reactions?
Which property of German silver makes it useful for makingimitation jewellery?
What do you mean by desiccating agent ?
Which among the following elements does not float on water /
What is the method of separation of (a) N_(2)-CO_(2) mixture, (b) H_(2) -O_(2) mixture, (c ) NH_(4)Cl, KCl and sand mixture, (d) Ink-water mixture