The Sblock Elements Ques 16
16. Washing soda has formula
[1990]
(a) $Na_2 CO_3 \cdot 7 H_2 O$
(c) $Na_2 CO_3 \cdot 3 H_2 O$
(b) $Na_2 CO_3 \cdot 10 H_2 O$
(d) $Na_2 CO_3$
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Answer:
Correct Answer: 16.(b)
Solution:
(b) Washing soda is $Na_2 CO_3 \cdot 10 H_2 O$.