INTERNATIONAL JUNIOR SCIENCE OLYMPIAD
Sir the revised answer key for injso from hbcse gives the answer of the 23rd question as (B). The previous answer key gave (D) as the answer. I doubt the change.Question 23. Which one is not an acid salt?a) NaH2PO4 b) NaH2PO2c) NaH2PO3 d) Na3PO3
Sir the revised answer key for injso from hbcse gives the answer of the 23rd question as (B). The previous answer key gave (D) as the answer. I doubt the change.
ReplyDeleteQuestion 23. Which one is not an acid salt?
a) NaH2PO4 b) NaH2PO2
c) NaH2PO3 d) Na3PO3