A) Soda ash - \[(N{{a}_{2}}C{{O}_{3}})\]
B) Camallite - \[(KCl . MgC{{l}_{2}} . 6{{H}_{2}}O)\]
C) Borax - \[(N{{a}_{2}}{{B}_{4}}{{O}_{7}} . 7{{H}_{2}}O)\]
D) Glauber's salt - \[(N{{a}_{2}}S{{O}_{4}} . 10{{H}_{2}}O)\]
Correct Answer: C
Solution :
[c] Barax is \[N{{a}_{2}}{{B}_{4}}{{O}_{7}} . 10{{H}_{2}}O\]
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