P-Block Elements Ques 20
Question: Aluminium vessels should not be washed with materials containing washing soda since
[KCET 1993]
Options:
A) Washing soda is expensive
B) Washing soda is easily decomposed
C) Washing soda reacts with aluminium to form soluble aluminate
D) Washing soda reacts with aluminium to form insoluble aluminium oxide
Show Answer
Answer:
Correct Answer: C
Solution:
$ Na_2CO_3+H_2O\to 2NaOH+CO_2 $ $ 2NaOH+2Al+6H_2O\to 2Na[Al{{(OH)}_4}]+3H_2 $
