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#1 2017-10-18 04:23:25

shakeel123
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The chemical formula of washing soda is ?A= Na2 CO3 10H2 OB= ...

9th Class Karachi Board Exams Quizzes MCQs Quizzes Karachi Board 9th Class Chemistry Online Test 2

Question:
The chemical formula of washing soda is?
A= Na2CO310H2O
B= Na2CO38H2O
C= Na2CO3
D= Na2CO312H2O

Option A):
A
Option B):
D
Option C):
C
Option D):
B

Correct Answer is Option C):
C


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2017-10-18 04:23:25

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