नीला थोथा है - – McqOptions

MCQOPTIONS

1.	नीला थोथा है -
A.	कॉपर सल्फेट
B.	कैल्शियम सल्फेट
C.	आयरन सल्फेट
D.	सोडियम सल्फेट
Answer» B. कैल्शियम सल्फेट

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