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There is a wrong question in science board paper that was pH of nahco3 was given 14 but actually it is 9 So we bonus marks ?

Posted by Sagar Kumar 7 years, 8 months ago

CBSE > Class 10 > Science

6 answers

Shahma Sanah 7 years, 8 months ago

But I don't wrote it..I wrote the or qstn...so may I get bonus??

Ruhi Agrawal 7 years, 8 months ago

Yes we will definitely receive bonus mark

Anurag Varshney 7 years, 8 months ago

Yes ,It is caustic soda whose ph is 14

Srishti Lodhi 7 years, 8 months ago

Yes its ans. Is baking soda...NaHCO3.

Aarzoo Rathi 7 years, 8 months ago

But salt used in cripsy pakoras is nahco3 whose ph is 9

Sparsh Verma 7 years, 8 months ago

No.. it is caustic soda which ph value is 14

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