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খাদ্য সংরক্ষণকারী হিসেবে ব্যবহৃত সাইট্রিক অ্যাসিডের pH মান কত?

Created: 2 years ago | Updated: 3 months ago
Updated: 3 months ago
ডেন্টাল কলেজ ভর্তি পরীক্ষার প্রশ্নসমুহ শিক্ষাবর্ষঃ ২০২০-২০২১ (ডেন্টাল) রসায়ন দ্রবণের pH,pH স্কেল
Description
612
Best Ans:

খাদ্য সংরক্ষনকারী ব্যবহৃত সাইট্রিক এসিড এর pH 3.14 ও ভিনেগারের pH 4.74

2 years ago
Jhorna

 অ্যান্টি মাইক্রোবায়েল (antimicrobials): অ্যান্টিমাইক্রোবায়েল রাসায়নিক প্রিজারভেটিভস্ ব্যাকটেরিয়া, ঈস্ট ও মোল্ডস-এর বৃদ্ধি প্রতিহত করে। এসব রাসায়নিক পদার্থ মাইক্রো অর্গানিজম কোষের মেমব্রেন ফাটিয়ে দেয়, এনজাইমের ক্রিয়া রোধ করে থাকে। এ সব প্রিজারভেটিভ অম্লধর্মী হয়। যেমন-

(১) সোডিয়াম বেনজোয়েট ও বেনজয়িক এসিড (m.p. 121°C) [কঠিন]

(২) পটাসিয়াম সরবেট, সোডিয়াম সরবেট ও ক্যালসিয়াম সরবেট (কঠিন)

(৩) সায়ট্রিক এসিড (কঠিন, m.p. 153°C)

(৪) অ্যাসিটিক এসিড (তরল, b.p. 118°C)

(৫) ক্যালসিয়াম প্রোপানোয়েট (C2H5COO)2Ca (s)

(৬) নাইট্রেট ও নাইট্রাইট লবণ, (NaNO3, KNO3, NaNO2) (s)

11 months ago
MD.SOLAIMAN HOSAN

রসায়ন

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Related Question

0.1 M অ্যাসিটিক এসিড দ্রবণের সাথে সম পরিমাণ 0.1 M সোডিয়াম অ্যাসিটেট দ্রবণ মিশ্রিত করলে মিশ্রণের pH কত হবে? (Ka=1.0×10-5)

Mg(OH)2 এর দ্রাব্যতা গুণাঙ্ক 2.0×10-11। দ্রবণের pH 10 হলে তাতে Mg2+ এর ঘনমাত্রা কত mol/L?

1M NaOH দ্রবণের pH এর মান কত?

490 cm3 পানিতে 10 cm3 1.0 M HCl এর দ্রবণ যোগ করা হল। মিশ্রণের pH কত?

বৃষ্টির পানির নমুনাতে pH এর মান কোনটির কম হলে এসিড বৃষ্টি হিসেবে গণ্য করা হবে?

এসিটিক এসিডের বিয়োজন মাত্রা 10% হলে ঐ এসিড 0.001 মোলার দ্রবণের pH কত?
Promotion
MessagesTimelineExceptionsViews33RouteQueries30Models43Livewire0MailsGateSessionRequest
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        Backtrace
        • app/Http/Controllers/Academy/QuestionController.php:451
        • app/Http/Controllers/Academy/QuestionController.php:411
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        Backtrace
        • app/Http/Controllers/Academy/QuestionController.php:451
        • app/Http/Controllers/Academy/QuestionController.php:411
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        Backtrace
        • app/Http/Controllers/Academy/QuestionController.php:451
        • app/Http/Controllers/Academy/QuestionController.php:411
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        Backtrace
        • app/Http/Controllers/Academy/QuestionController.php:451
        • app/Http/Controllers/Academy/QuestionController.php:411
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        Backtrace
        • app/Http/Controllers/Academy/QuestionController.php:451
        • app/Http/Controllers/Academy/QuestionController.php:411
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        Backtrace
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        • app/Http/Controllers/Academy/QuestionController.php:411
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        Backtrace
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        Backtrace
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        Backtrace
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        Backtrace
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          ClearShow all
          Date ↕MethodURLData
          #12025-03-12 15:52:56GET/admission/single-question?ques_id=242661++++++++++++++++333043