NEET Sample Paper NEET Sample Test Paper-51

  • question_answer 64) How many moles of HCl must be removed from 1 litre of aqueous HCl solution to change its pH from 2 to 3-

    A) 1                     

    B) 0.02

    C) 0.009               

    D) 0.01

    Correct Answer: C

    Solution :

    \[\Delta N={{10}^{-}}^{2}-{{10}^{-}}^{3}\] \[={{10}^{-}}^{2}\left( 1-0.1 \right)\] \[=\text{ }9\,\,\times \,\,{{10}^{-}}^{3}\] \[\therefore \,\,\,\Delta \,M=\text{ }9\,\,\times \,\,{{10}^{-}}^{3}\] \[\therefore \,\,\,\Delta \,moles=\text{ }9\,\,\times \,\,{{10}^{-}}^{3}\]

adversite



LIMITED OFFER HURRY UP! OFFER AVAILABLE ON ALL MATERIAL TILL TODAY ONLY!

You need to login to perform this action.
You will be redirected in 3 sec spinner

Free
Videos